Cases by subspecialty-no diagnosis (below); click here for cases by clinical history; here for cases by diagnosis, here for cases by subspecialty (with diagnosis)



Breast pathology
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Case 537: 26 year old woman presented with modified Bloom Richardson grade 2 invasive ductal carcinoma and ipsilateral axillary lymph node metastasis at diagnosis; her cancer was hormone receptor positive, HER2 equivocal (2+) on IHC
Case 536: 55 year old woman showing slight interval size increase of a subcentimeter nodule on left breast needle core biopsy after routine mammography
Case 533: Premenopausal woman with family history of breast cancer was found to have a subcentimeter mass with calcifications on mammogram
Case 530: 66 year old woman with a history of invasive lobular carcinoma and bilateral mastectomy with breast implant reconstruction developed rib pain; CT of the chest showed an asymmetric 4.8 cm soft tissue mass
Case 518: Postmenopausal woman with a 1.7 cm complex solid and cystic mass in left breast
Case 515: Young woman who had nipples pierced, presented with right breast pain, erythema and drainage
Case 512: 61 year old woman with right breast fullness and fluid collection around right breast silicone implant
Case 504: 67 year old woman with a solitary, rapidly enlarging, 2.2 cm right breast mass
Case 478: 79 year old woman with a 4 cm painful breast lump for one year
Case 462: 30 year old woman with a fluctuant mass-like breast lesion
Case 444: 64 year old woman with huge breast mass for 6 months
Case 418: 68 year old woman with breast mass
Case 407: 60 year old woman with 3 x 3 cm lump in upper inner quadrant of left breast
Case 395: 57 year old woman with 2.4 cm breast mass
Case 369: 56 year old woman with breast mass
Case 337: 51 year old diabetic woman with breast mass
Case 306: 37 year old with mastectomy for breast cancer
Case 302: 45 year old woman presented with breast mass
Case 271: 61 year old woman with mammographic breast mass
Case 255: 30 year old woman with 12 cm breast mass
Case 252: 64 year old woman with small breast mass
Case 236: 71 year old woman with invasive breast cancer
Case 227: 60 year old woman with breast mass
Case 217: 55 year old woman with axillary tail mass
Case 192: 37 year old woman with breast mass
Case 168: 67 year old woman with mammographic calcifications
Case 68: 84 year old woman with a breast nodule
Case 62: 22 year old woman with an enlarging breast mass
Case 45: 72 year old woman with lumpectomy for mammographic calcifications
Case 37: 48 year old woman with a mammary fibroadenoma containing atypical cells
Case 35: 54 year old woman with large breast mass and nipple discharge
Case 25: 61 year old woman with suspicious microcalcifications on mammography
Case 11: Postmenopausal woman with a breast mass
Case 8: 52 year old woman with a breast mass
Case 6: 66 year old woman with a well circumscribed breast mass
Case 4: 59 year old woman with a breast mass

Cytopathology
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Case 100: 50 year old man with bilateral neck masses
Case 72: Two year old boy with multiple skull masses
Case 36: 7 year old girl with fine needle aspiration of a chest mass
Case 28: Elderly man with a fixed neck mass
Case 9: 47 year old man with a pleural based lesion

Dermatopathology
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Case 525: 25 year old man presented with a 1 cm, well demarcated, dome shaped, blue-black lesion on his finger, which was excised
Case 517: Man in his 50s with leonine face and keratotic papules all over his body, a condition present since childhood
Case 433: 26 year old man with itchy, beaded papules on head, neck and other skin sites
Case 424: 34 year old man presented with an occipital nodule
Case 423: 73 year old woman presented with a viral rash on her lower right leg
Case 415: 83 year old man with rapidly growing mass on his scalp
Case 414: 67 year old woman with left arm ulcer for 6 months
Case 413: 51 year old woman with slowly growing scalp nodule
Case 396: 37 year old woman with 1.1 cm solitary non-tender axillary lymph node
Case 383: 32 year old man with excised 8 cm scalp mass
Case 361: 17 year old girl with generalized myoclonus epilepsy following a seizure
Case 360: 36 year old man with parotid mass
Case 344: 2 year old boy with itchy brown skin macules
Case 332: 32 year old man with multiple, yellowish, waxy papules on neck
Case 324: 3 month old child with painful nodule on finger
Case 315: 53 year old man with chest wall "sebaceous cyst"
Case 304: 55 year old woman with skin nodule on chest
Case 290: 87 year old woman with forearm skin lesion
Case 253: 70 year old woman with cheek lesion
Case 251: 68 year old man with multiple brown macules and plaques on face and body
Case 225: 73 year old man with nodules on leg secondary to splinter injury while chopping firewood
Case 221: 34 year old woman with SLE and a skin rash
Case 190: 60 year old woman with "BCC" on cheek
Case 160: 52 year old woman with chronic, diffuse, lichenified eruptions on leg
Case 155: 18 year old woman with papules on legs x 12 years, now on hands
Case 153: 34 year old woman with papular lesions on hand and face
Case 151: 86 year old man with indurated cutaneous papules
Case 140: 68 year old woman with eruption of violaceous skin nodules
Case 116: 60 year old man with scalp nodule
Case 113: 24 year old woman with abdominal skin lesion
Case 107: 37 year old man with skin lesion in the back
Case 71: 64 year old woman with pruritic, erythematous plaques on her abdomen and back
Case 56: 85 year old Mexican woman with pruritic and scaly plaques on her trunk
Case 7: 19 year old man with lump on wrist
Case 5: 20 year old woman with an extranumerary nipple

Gastrointestinal pathology / liver
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Case 531: 85 year old woman with a remote history of right sided colon cancer underwent a transverse colon resection for a newly diagnosed colon cancer
Case 529: 52 year old man with accumulations of discohesive large cells in cystic spaces of the regressively changed tumor bed of a GIST
Case 527: 45 year old man complaining of constipation and rectal bleeding is found to have an ulcerated rectal lesion on colonoscopy
Case 523: 25 year old man complaining of abdominal pain is found to have a 4 cm gastric mass, which is resected
Case 507: 54 year old man with a partial colonic resection for an endoscopically unresectable tubular adenoma of the right colon
Case 499: 74 year old man with ascites, liver lesions and growing 5 cm soft tissue abdominal mass
Case 492: 68 year old woman with Crohn's disease and small bowel perforation
Case 482: 76 year old woman with rectal cancer and a suspected enteric duplication cyst in the distal ileum
Case 481: 44 year old woman who died after presenting with vomiting, diarrhea, fever and pancytopenia
Case 475: 44 year old man with incidental 1 cm nodule on anterior surface of liver
Case 471: 72 year old woman with a vaginal mass
Case 460: 65 year old man with history of esophageal cancer and end stage renal disease
Case 455: 37 year old man with incidentally detected gastric mass
Case 447: 64 year old Nebraskan farmer with progressive weight loss
Case 442: 75 year old woman on dialysis presented with coffee ground emesis
Case 441: 59 year old man presented with abdominal bloating and vague abdominal pain
Case 440: 37 year old woman with gastric outlet obstruction
Case 438: 50 year old woman with submucosal gastric mass
Case 436: 30 year old woman with end stage renal disease underwent a combined kidney/liver transplant
Case 432: Newborn with 6 cm hepatic mass
Case 428: 71 year old man with a large rectal adenoma and an incidental finding
Case 421: 79 year old Chinese woman with chronic gastritis and a 2 cm sessile gastric polyp
Case 420: 67 year old man with unusual appearing esophagus on endoscopy
Case 417: 60 year old woman with rectal bleeding and rectal mass
Case 410: 68 year old man with history of microscopic colitis with gastric thickening on CT, presently for EGD
Case 402: 46 year old man with untreated HIV since 2001 and history of anal condyloma
Case 400: 4 year old boy with fever, colicky epigastric pain and lower midline abdominal lesion
Case 393: 53 year old woman with pain in left hypochondrium (upper abdomen) x 4 months
Case 389: 27 year old man with familial adenomatous polyposis (FAP) and multiple gastric polyps
Case 378: 38 year old woman had jejunal resection with morbid obesity surgery
Case 372: 3 year old boy with history of allogenic bone marrow transplant found to have abdominal pain, mild weight loss and diarrhea
Case 354: 20 month old girl, post-stem cell transplant for MLL-rearranged acute myeloid leukemia (AML), with features of AML relapse
Case 351: 55 year old man with common hepatic duct stricture
Case 347: 46 year old woman with stomach mass
Case 341: 60 year old woman with multiple, slow growing liver lesions
Case 329: 48 year old man with history of cholecystectomy and jaundice; 59 year old woman with painful nodularity of common hepatic duct
Case 322: 50 year old man with obstructive jaundice had an ampullary mass
Case 316: 79 year old woman with small gastric antral polyp
Case 305: 63 year old man with prior tubular adenoma and new colon polyp
Case 303: 47 and 50 year old men with malabsorption
Case 272: 50 year old man with multiple polyps in jejunum
Case 288: 65 year old man with mass in floor of mouth
Case 270: 65 year old man with multiple intestinal and mesenteric nodules
Case 257: 50 year old man with watery diarrhea
Case 249: 32 year old woman with tumor in cecal region
Case 240: 46 year old woman with chronic abdominal discomfort
Case 237: 45 year old woman with large mass attached to mid-jejunum
Case 231: 94 year old woman with GI bleed and spotty hyperpigmentation at endoscopy
Case 223: 55 year old HIV+ man with granular and enlarged liver by ultrasound
Case 213: 48 year old man with prolonged diarrhea
Case 189: 58 year old man with a large colonic polyp
Case 186: 60 year old woman with clinically gangrenous gallbladder
Case 164: 51 year old man with liver disease
Case 162: 9 month old girl with imperforate anus and presacral mass
Case 161: 18 year old man with abdominal mass and biopsy
Case 159: 31 year old woman with enlarged stomach lesion
Case 157: 20 year old woman with dyspepsia
Case 154: 81 year old woman with cystic, papillary pancreatic tumor
Case 147: 40 year old man with massive rectal bleeding
Case 143: 37 year old woman with abdominal mass
Case 141: 42 year old woman with possible hepatic adenomas
Case 134 10 year old girl with 15 cm liver mass
Case 133 43 year old Honduran man with diarrhea and abdominal pain
Case 129 52 year old man with anal condyloma
Case 127 56 year old woman with celiac sprue and nodular areas in the antrum
Case 124: 55 year old man with duodenal polyp
Case 121: 33 year old woman with pancreatic mass
Case 106: 35 week fetus with distended abdomen
Case 90: 33 year old woman with clinical appendicitis
Case 88: 13 month old girl with incidental liver mass
Case 81: 36 year old man with a duodenal mass
Case 70: 47 year old woman with a multilocular hepatic cyst
Case 61: 15 month old boy with an asymptomatic liver mass
Case 44: 20 year old woman with liver mass identified after childbirth
Case 33: 48 year old man with a 4 cm gastric mass
Case 13: 31 year old woman with a pancreatic mass

Genitourinary / adrenal pathology
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Case 521: 76 year old man with incidental renal tumor in lower pole of right side of horseshoe kidney
Case 520: 61 year old man with flaky rash in the penoscrotal region for 9 months
Case 511: Woman in 80s with suspected chronic cystitis, gross hematuria; multifocal erythema, erosions in cystoscopy
Case 510: 69 year old woman with a history of bilateral hydronephrosis with weight loss and vaginal spotting
Case 509: 71 year old woman with heterogeneously enhancing mass involving adrenal gland
Case 506: Man in his 50s with history of multiple bilateral renal masses and multiple pulmonary nodules
Case 501: Woman in her 50s who underwent nephrectomy for a renal mass
Case 498: 54 year old woman with diabetes and a 1 cm renal mass
Case 496: A woman in her early 50s with multiple broad based bladder mucosal lesions
Case 491: 39 year old man with a painful slowly enlarging left testicle with mass
Case 489: 3 year old boy with malignant hypertension, seizures and electrolyte derangements
Case 484: 34 year old man with a 1.4 cm mass underwent partial nephrectomy
Case 468: 50 year old man with scrotal nodules
Case 467: 16 year old girl underwent partial nephrectomy for suspected Wilms tumor
Case 466: 70 year old woman with bladder tumor resection (TURBT)
Case 456: 76 year old woman with right sided neck mass
Case 448: 49 year old man with testicular mass
Case 430: 67 year old man with shortness of breath and huge mediastinal mass
Case 379: 52 year old woman with nonalcoholic steatohepatitis and right kidney mass
Case 359: 26 year old woman with 4 cm renal mass
Case 353: 47 year old man with malaise and recent UTI, with voided urine specimen
Case 339: 69 year old man with bladder biopsy for gross hematuria
Case 338: 2 week old 'female' infant with nephrotic syndrome and renal failure
Case 331: 72 year old man with hematuria underwent cystoscopy
Case 328: 34 year old man with hypoechoic testicular lesion
Case 320: 30 year old man with white plaque on glans penis
Case 319: 34 year old man with MEN 2A and adrenal mass
Case 309: 16 year old boy with chronic, painless testicular mass
Case 286: 58 year old man had a prostate biopsy for a "hard" prostate
Case 279: 1 year old boy with undescended testis and firm nodule near external inguinal opening
Case 269: 59 year old man with a PSA of 7.9
Case 261: 11 year old boy with hydrocele
Case 254: 45 year old man with testicular swelling
Case 229: 71 year old woman with end stage renal disease and multiple complex cystic renal lesions
Case 220: 37 year old woman with renal mass
Case 219: 76 year old man with bladder wall mass
Case 209: 72 year old man with TURP
Case 204: 60 year old man with incidental renal mass
Case 198: 55 year old woman with hematuria
Case 195: 40 year old woman with bladder mass
Case 194: 82 year old woman with mass in proximal urethra and bladder neck
Case 188: 61 year old woman with incidental adrenal cyst
Case 187: 53 year old man on dialysis with incidental renal tumor
Case 170: 36 year old man with adrenal mass
Case 145: 15 year old boy with paratesticular tumor
Case 137: 72 year old man with a radical prostatectomy for prostatic adenocarcinoma
Case 122: 43 year old man with testicular tumor
Case 117: 70 year old man with prostatectomy
Case 85: 66 year old man with a radical prostatectomy for prostatic adenocarcinoma
Case 76: 49 year old man with an inguinal mass
Case 69: 34 year old man with a scrotal abscess
Case 67: 2 year old with an abdominal mass
Case 57: 3 month old girl with kidney mass
Case 48: 50 year old woman with well encapsulated renal mass
Case 43: 44 year old man with a 1 mm incidental renal mass at nephrectomy
Case 40: 56 year old man with B cell CLL, post-treatment for a relapse, now with dysuria and hematuria
Case 32: 44 year old woman with incidental renal mass composed of straplike cells
Case 26: 29 year old man with a testicular mass
Case 19: 40 year old woman with large renal mass
Case 18: 23 year old man with pain in the right testis

Gynecologic pathology
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Case 534: 46 year old woman underwent a total hysterectomy for uterine leiomyomas
Case 526: 62 year old woman, with postmenopausal bleeding and biopsy diagnosis of high grade endometrial carcinoma, underwent a hysterectomy
Case 522: 55 year old woman underwent total hysterectomy & bilateral salpingo-oophorectomy and lymph node biopsy
Case 508: 32 year old woman with enlarged uterus with hypervascular lesions likely representing fibroids
Case 500: 52 year old woman with ovarian mass on computed tomography imaging and a raised CA-125
Case 495: 34 year old woman with atypical glandular cells on pap smear
Case 480: 35 year old pregnant woman with growing nodule on cervix
Case 473: 58 year old woman with postmenopausal bleeding
Case 471: 72 year old woman with a vaginal mass
Case 465: 66 year old woman with left ovarian mass
Case 453: 43 year old woman with right ovarian cystectomy and interval sterilization
Case 451: 45 year old woman with postmenopausal bleeding
Case 429: 32 years old woman with vaginal bleeding for two weeks
Case 417: 60 year old woman with rectal bleeding and rectal mass
Case 385: 18 month old girl with retroperitoneal mass
Case 384: 16 year old girl with ovarian mass and hirsutism
Case 371: 42 year old woman with menorrhagia for 8 years was found to have a left ovarian cyst
Case 363: 14 year old girl with vaginal bleeding
Case 356: 48 year old with bilateral ovarian endometriosis had a bilateral BSO
Case 352: 38 year old woman with morcellated myomectomy specimen
Case 345: 49 year old woman with hysterectomy for fibroid uterus
Case 343: 35 year old woman with painless vulvar nodule
Case 327: 27 year old woman with 6 cm cervical mass
Case 326: 34 year old female cyclist with perineal cysts
Case 313: 74 year old woman with history of diverticulitis
Case 295: 50 year old woman with ovarian mass
Case 294: 43 year old woman with uterine bleeding
Case 293: 60 year old woman with 2 cm nodule in labia majora
Case 273: 42 year old pregnant woman with ulcerated nodule on labia
Case 264: 22 year old pregnant woman with twins with oligohydramnios and polyhydramnios
Case 256: 23 year old woman with vaginal discomfort
Case 246: 53 year old woman with hysterectomy for vaginal bleeding
Case 241: 30 year old woman with 2 cm circumscribed vulval mass
Case 233: 62 year old woman with 7 cm adnexal mass
Case 232: 51 year old woman with incidental uterine 3 cm white-tan subserosal nodule
Case 211: 57 year old woman with endometrial polyp
Case 207: 8 year old girl with pelvic mass
Case 205: 36 year old woman with multiple small cystic lesions of the pelvic peritoneum and small bowel mesentery
Case 202: 30 year old woman with cervical biopsy
Case 193: 25 year old woman with enlarged placenta with numerous grape-like cysts
Case 184: 37 year old woman with ovarian mass
Case 181: 28 year old woman with vulvar tumor
Case 172: 73 year old woman with vulvar mass
Case 171: Middle aged woman with vaginal nodule
Case 152: 54 year old woman with pelvic mass
Case 135 50 year old woman with vaginal bleeding
Case 125: 62 year old woman with post-menopausal bleeding
Case 96: 55 year old woman with a pelvic mass
Case 92: 59 year old woman with a vaginal discharge
Case 55: 50 year old woman with an ileocecal mass
Case 53: HIV positive woman from Ghana with large vulvar mass
Case 31: 44 year old woman with extensive tumor deposits on the omentum, uterus, tubes and ovaries
Case 12: 22 year old woman with an ovarian mass

Head and neck pathology
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Case 528: 19 year old woman, with a 3.7 cm thyroid mass
Case 524: 3 week old female infant with pedunculated lesion of the anterior maxillary alveolar process
Case 513: Patient with history of melanoma presented with a thyroid nodule and had a total thyroidectomy
Case 503: 54 year old man with 2.5 cm lytic mandibular lesion
Case 497: 28 year old woman with palate ulcer
Case 494: 49 year old man with nasal obstruction
Case 493: 26 year old man with refractory AML and sinus pain
Case 490: 17 year old girl with a 2 cm maxillary lesion surrounding an impacted canine tooth
Case 488: 32 year old woman presented with suspected meningioma
Case 487: 54 year old woman with a 3.5 cm midline neck mass
Case 483: 60 year old man with swelling in base of tongue
Case 470: 19 year old woman with right sided neck swelling
Case 465: 66 year old woman with left ovarian mass
Case 461: 67 year old man with a thyroid mass
Case 456: 76 year old woman with right sided neck mass
Case 446: 8 year old child with 2 cm posterior cervical lymph node
Case 445: 69 year old woman with small indurated lesion on lateral border of tongue
Case 439: 58 year old woman presented with a right neck swelling and odynophagia for one month
Case 435: 26 year old African American woman with thyroid nodule with benign biopsy and FNA, but compressive symptoms
Case 426: Elderly man with 1.5 cm "orbital" mass
Case 420: 67 year old man with unusual appearing esophagus on endoscopy
Case 419: 71 year old man with multiple firm left submandibular swellings for two months
Case 412: 68 year old man with ulcerative colitis, chronic rhinitis with nasal airway obstruction and septal perforation
Case 404: 84 year old male smoker with enlarging parotid gland lesion
Case 394: 71 year old man with painless right sided neck mass
Case 392: 54 year old man with painless swelling over left half of upper lip for past 10 years
Case 390: 27 year old woman with right nasal polyp
Case 382: 39 year old woman with cystic 4.7 cm submandibular gland mass
Case 376: 63 year old woman with 1 cm middle ear mass
Case 375: 51 year old man with 6 cm parotic mass of 8 years duration
Case 368: 96 year old woman with eyelid lesion
Case 367: 12 year old boy with mass in upper jaw
Case 365: 59 year old man with parotid mass
Case 360: 36 year old man with parotid mass
Case 355: 16 year old girl with parotid mass
Case 350: 27 year old woman with mass in maxilla
Case 349: 45 year old man with middle ear mass
Case 346: 4 year old boy with soft tissue mass in cheek
Case 342: 54 year old woman with 2 thyroid nodules
Case 318: 50 year old man with ameloblastoma of jaw metastatic to lung
Case 310: 49 year old woman with laryngeal mass
Case 301: 45 year old woman with a soft tissue swelling confined to the orbit
Case 291: 47 year old woman with endoscopic surgery for nasal polyp
Case 288: 65 year old man with mass in floor of mouth
Case 281: 48 year old man with eyelid mass
Case 276: 11 year old boy with tonsillar mass
Case 274: 65 year old man with swelling around gums and teeth
Case 268: 2 year old boy with parotid mass
Case 248: 74 year old man with multinodular goiter
Case 247: 61 year old woman with diffusely enlarged thyroid gland
Case 243: 28 year old man with submandibular mass
Case 230: Middle-aged woman with locally recurrent thyroid tumor
Case 214: 44 year old man with parotid gland mass
Case 212: 70 year old man with enlarging thyroid nodule
Case 191: 54 year old man with large posterior nasal mass
Case 185: 5 month old boy with retrophyaryngeal mass
Case 183: Elderly patient with mass behind ear
Case 156: 50 year old man with erythematous gingiva
Case 142: 17 year old woman with floor of mouth tumor
Case 139: 53 year old man with bipolar disorder and sudden death
Case 138: 51 year old man with a nasal turbinate mass
Case 123: 1 year old boy with neck mass
Case 115: 61 year old man with eyelid swelling
Case 108: 86 year old woman with neck pain and difficulty swallowing
Case 104: 22 year old man with fine needle aspiration of a neck nodule
Case 103: 86 year old man with stable parotid mass
Case 101: 40 year old woman with nasal mass
Case 100: 50 year old man with bilateral neck masses
Case 98: 18 year old man with pigmented thyroid gland at autopsy
Case 97: 29 year old man from India with nasal mass
Case 84: 58 year old woman with chronic sinusitis
Case 82: 57 year old man with papillary lesions on his palate
Case 73: 66 year old man with a cyst-like lesion of the mandible
Case 54: 59 year old woman with a slow growing parotid mass
Case 49: 68 year old woman with large soft palate tumor
Case 42: 63 year old man with painful cheek mass
Case 28: Elderly man with a fixed neck mass
Case 24: 43 year old man with chronic sinusitis and a nasal polyp
Case 14: 17 year old woman with loosening of lower incisors

Hematopathology
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Case 529: 52 year old man with accumulations of discohesive large cells in cystic spaces of the regressively changed tumor bed of a GIST
Case 519: 51 year old man with HIV history, presenting with cough, dyspnea, chest pain and fever
Case 499: 74 year old man with ascites, liver lesions and growing 5 cm soft tissue abdominal mass
Case 486: 43 year old woman presented with fever, chills and muscle aches after a tick bite
Case 474: 71 year old man with a 2 x 2 cm chest wall mass
Case 463: 9 year old child with anorexia and abdominal distension
Case 446: 8 year old child with 2 cm posterior cervical lymph node
Case 440: 37 year old woman with gastric outlet obstruction
Case 437: 65 year old man with leukocytosis (WBC 39.6 x 10⁹/L), splenomegaly and periportal lymphadenopathy
Case 406: 60 year old woman with 18 x 11 mm hypoechoic mass in tail of pancreas
Case 405: 57 year old man with gastric cancer; lymph nodes removed during surgery
Case 403: Newborn with acute respiratory distress, marked jaundice and whole body purpuric rash
Case 394: 71 year old man with painless right sided neck mass
Case 381: 57 year old woman with rheumatoid arthritis and rapidly growing lesions on face and forehead
Case 364: 44 year old man with splenic mass
Case 354: 20 month old girl, post-stem cell transplant for MLL-rearranged acute myeloid leukemia (AML), with features of AML relapse
Case 344: 2 year old boy with itchy brown skin macules
Case 317: 37 year old man with fever and pancytopenia
Case 314: 68 year old woman with SLL/CLL and rapidly expanding inguinal node
Case 307: 65 year old man with colon cancer and 2.5 cm groin lymph node
Case 299: 49 year old woman with lymphadenpathy, tender skin papules and a pathologic tibial fracture
Case 284: 21 year old man with submandibular mass
Case 281: 48 year old man with eyelid mass
Case 277: 45 year old Pakistani man with fever and rigors
Case 218: 35 year old HIV+ man with diffuse lymphadenopathy
Case 192: 37 year old woman with breast mass
Case 179: 62 year old woman with sudden epigastric pain
Case 176: 66 year old man with abdominal pain
Case 175: 70 year old woman with cerebral mass
Case 151: 86 year old man with indurated cutaneous papules
Case 140: 68 year old woman with eruption of violaceous skin nodules
Case 130: 27 year old woman wih a swelling of the fibula
Case 127 56 year old woman with celiac sprue and nodular areas in the antrum
Case 120: 88 year old woman with abnormal CBC
Case 118: 60 year old man with lower leg edema
Case 101: 40 year old woman with nasal mass
Case 95: 55 year old man with a nodular patch in the cecum at colonscopy
Case 93: 63 year old woman with axillary mass
Case 89: 22 year old woman with cervical adenopathy and no other medical history
Case 87: 41 year old HIV+ man with pancytopenia and skin nodules
Case 81: 36 year old man with a duodenal mass
Case 79: Elderly man with an enlarged supraclavicular lymph node
Case 74: 65 year old woman with backache, abnormal plasma cells but a normal serum protein electrophoresis
Case 41: 72 year old woman with multiple strokes
Case 36: 7 year old girl with fine needle aspiration of a chest mass
Case 27: 22 year old woman with worsening pelvic pain
Case 21: 64 year old Japanese woman with multiple opportunistic infections
Case 2: Incidental splenic mass during laparoscopy for excision of benign pancreatic cyst
Case 1: 46 year old man with mediastinal mass

Microbiology
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Case 486: 43 year old woman presented with fever, chills and muscle aches after a tick bite
Case 446: 8 year old child with 2 cm posterior cervical lymph node
Case 402: 46 year old man with untreated HIV since 2001 and history of anal condyloma
Case 277: 45 year old Pakistani man with fever and rigors
Case 225: 73 year old man with nodules on leg secondary to splinter injury while chopping firewood
Case 223: 55 year old HIV+ man with granular and enlarged liver by ultrasound
Case 215: 2 year old boy with hemiparesis and contrast-enhancing lesion by MRI
Case 213: 48 year old man with prolonged diarrhea
Case 174: 45 year old Guyanese woman with severe headache
Case 133 43 year old Honduran man with diarrhea and abdominal pain
Case 87: 41 year old HIV+ man with pancytopenia and skin nodules
Case 53: HIV positive woman from Ghana with large vulvar mass
Case 40: 56 year old man with B cell CLL, post-treatment for a relapse, now with dysuria and hematuria

Neuropathology
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Case 532: 52 year old man, with history of HIV infection and Kaposi sarcoma 5 years prior, presented with lower extremity weakness
Case 514: 51 year old man with progressive hearing loss, intermittent dizziness, difficulty walking and severe headaches
Case 502: 3 year old girl with a large heterogeneously enhancing pineal mass and obstructive hydrocephalus
Case 477: 5 year old girl with headache and vomiting for one week
Case 431: 50 year old woman with parietal mass
Case 427: 23 year old man with 5.5 x 5.2 cm intra-axial cystic mass lesion in right parietotemporal region
Case 425: Middle aged woman with history of lung carcinoma and cerebellar mass
Case 409: 80 year old man with myasthenia gravis, subacute gait disturbance and cognitive impairment
Case 399: 33 year old man with back pain and pelvic mass
Case 373: 61 year old man with left brain mass
Case 361: 17 year old girl with generalized myoclonus epilepsy following a seizure
Case 325: 66 year old woman with frontoparietal brain mass
Case 312: Newborn boy with large cerebral mass
Case 292: 17 year old boy with solid and cystic frontal brain mass
Case 282: 17 year old girl with lesion of lateral ventricle
Case 265: 61 year old man with follicular lymphoma and cerebellar mass
Case 259: 45 year old woman with headache and dural based lesion
Case 250: 4 month old boy with hypothalamic tumor
Case 242: 39 year old woman with dural mass
Case 222: 18 year old woman with frontal lobe mass
Case 216: 28 month old girl with mass lesions in 4th ventricle and cerebellum
Case 215: 2 year old boy with hemiparesis and contrast-enhancing lesion by MRI
Case 208: 66 year old man with mass of fourth ventricle
Case 175: 70 year old woman with cerebral mass
Case 174: 45 year old Guyanese woman with severe headache
Case 165: 4 month old child with midline skull lesion
Case 162: 9 month old girl with imperforate anus and presacral mass
Case 119: 17 year old woman with intraventricular mass
Case 111: 71 year old man with filum terminale mass
Case 75: 57 year old man with a CNS intraventricular mass
Case 39: 16 year old girl with new onset of seizures and a temporal lobe mass
Case 38: 54 year old man with von Hippel Lindau disease and a cerebellar mass

Pulmonary / cardiovascular pathology
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Case 535: 79 year old patient with pulmonary arterial mass
Case 479: 47 year old Asian woman with malaise, weight loss, chest pain and shortness of breath
Case 476: 73 year old man with bilateral pleural effusions, lung nodules and pleural thickening
Case 459: 43 year old man with sudden onset breathlessness and fever
Case 454: 71 year old woman with left atrial mass
Case 431: 50 year old woman with parietal mass
Case 430: 67 year old man with shortness of breath and huge mediastinal mass
Case 425: Middle aged woman with history of lung carcinoma and cerebellar mass
Case 416: 45 year old woman with 5.3 cm posterior mediastinal cyst
Case 401: 5 week old boy with supracardiac soft tissue mass
Case 374: 4 year old Syrian boy with mediastinal mass
Case 358: 85 year old woman with 6 cm pleural mass
Case 357: 52 year old woman with progressive cough, dyspnea and wheezing
Case 336: 42 year old HIV+ man with chronic coughing and congestion, lung biopsy
Case 333: 6 year old boy with right neck swelling
Case 318: 50 year old man with ameloblastoma of jaw metastatic to lung
Case 298: 65 year old woman with arthritis and lung mass
Case 287: 71 year old man with recurrent pneumonia
Case 278: 62 year old man with anterior mediastinal mass
Case 266: 30 year old woman with hemoptysis and fever for 1 week
Case 224: 25 year old woman found dead in apartment with 6 cm tumor at cardiac apex
Case 197: 85 year old woman with multiple lung nodules
Case 196: Premature male with bilateral pleural effusions
Case 166: 8 month old infant with lung mass
Case 150: 37 year old woman with pericardial mass
Case 114: 47 year old woman with left ventricular mass
Case 105: 6 year old boy with bilateral pulmonary infiltrates
Case 99: 70 year old man with mediastinal mass
Case 78: 65 year old woman with a left atrial mass
Case 58: Term newborn with abnormal fetal ultrasound and lobectomy
Case 36: 7 year old girl with fine needle aspiration of a chest mass
Case 23: 80 year old man with a lung nodule and enlarged mediastinal lymph nodes
Case 17: 61 year old woman with a mediastinal mass
Case 9: 47 year old man with a pleural based lesion

Renal pathology (medical, non tumor)
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Case 403: Newborn with acute respiratory distress, marked jaundice and whole body purpuric rash
Case 338: 2 week old 'female' infant with nephrotic syndrome and renal failure
Case 323: 68 year old man with cirrhosis and 2.9 cm renal mass
Case 244: 11 year old girl with renal mass and lung nodules
Case 235: 52 year old man with unexplained renal failure
Case 30: 41 year old man with diabetes and renal failure after an upper respiratory infection

Soft tissue and bone pathology
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Case 535: 79 year old patient with pulmonary arterial mass
Case 516: 27 year old man with multiple peritoneal masses with extension into the retroperitoneum
Case 505: 68 year old woman with left retroperitoneal soft tissue mass anterior to the psoas
Case 494: 49 year old man with nasal obstruction
Case 485: 30 year old woman with longstanding history of a small abdominal wall mass
Case 469: 45 year old man with a painless forehead lump
Case 458: 14 year old boy with arm swelling
Case 457: 32 year old man with swelling of right masseter
Case 452: 51 year old woman with pain in the right iliac fossa
Case 450: 39 year old man with progressive swelling over the midline of scalp
Case 449: 33 year old man with pain and swelling of right upper thigh post trauma
Case 443: 56 year old man with neurofibromatosis type 1 and right axillary swelling for many years
Case 434: 53 year old woman with painless, slowly growing, right inguinal swelling
Case 426: Elderly man with 1.5 cm "orbital" mass
Case 401: 5 week old boy with supracardiac soft tissue mass
Case 400: 4 year old boy with fever, colicky epigastric pain and lower midline abdominal lesion
Case 378: 67 year old man with 1.5 cm excised scalp nodule
Case 377: 29 year old woman with longstanding neck swelling
Case 370: 75 year old man with acute intestinal perforation and 55 year old woman with gluteal mass
Case 366: 63 year old woman with knee mass
Case 348: 56 year old man with 5 cm thigh mass
Case 335: 31 year old man with vascular lesion near knee
Case 335: 31 year old man with vascular lesion near knee
Case 334: 70 year old woman with retroperitoneal mass near lower pole of kidney
Case 321: 14 year old boy with mass in the L5 vertebral body
Case 311: 38 year old woman with ankle mass
Case 310: 49 year old woman with laryngeal mass
Case 308: 52 year old woman with wrist pain and clinical giant cell tumor
Case 300: 61 year old woman with a loosening of total hip replacement (THR) prosthesis after a fall
Case 299: 49 year old woman with lymphadenpathy, tender skin papules and a pathologic tibial fracture
Case 296: 28 year old woman with 2 cm mass on big toe
Case 289: 42 year old man with painful forearm mass
Case 283: 48 year old man with shoulder mass
Case 280: 15 year old girl with well circumscribed sacroiliac mass
Case 276: 11 year old boy with tonsillar mass
Case 268: 2 year old boy with parotid mass
Case 262: 26 year old woman with thumb tumor / 37 year old woman with index finger cyst
Case 245: 39 year old man with 9 cm soft tissue mass of thigh
Case 239: 29 year old man with 7 cm swelling in elbow
Case 238: 81 year old man with subcutaneous mass of great toe
Case 206: 80 year old man with multiple splenic infarcts
Case 199: 44 year old woman with recurrent mass of ankle / dorsum of foot
Case 182: 55 year old man with neck mass
Case 181: 28 year old woman with vulvar tumor
Case 180: 29 year old woman with occipital mass
Case 173: 39 year old man with buttock tumor
Case 169: 58 year old woman with shoulder mass
Case 167: 35 year old man with neck mass
Case 165: 4 month old child with midline skull lesion
Case 158: 26 year old woman with mass on palm of hand
Case 149: 50 year old woman with thigh mass
Case 145: 15 year old boy with paratesticular tumor
Case 132 54 year old woman with supraclavicular mass
Case 130 27 year old woman with a swelling of the fibula
Case 123: 1 year old boy with neck mass
Case 110: 47 year old man with low back pain
Case 107: 37 year old man with skin lesion in the back
Case 80: 28 year old man with a red thigh nodule for 6 months suggestive of Kaposi's sarcoma
Case 77: 55 year old man with a large thigh mass
Case 72: 2 year old boy with multiple skull masses
Case 66: 71 year old man with a popliteal fossa mass
Case 65: 37 year old woman with a wrist mass
Case 64: 55 year old bedridden man with a hip mass
Case 63: 53 year old man with a recurrent, painful pretibial mass
Case 52: 33 year old man with an asymptomatic hand mass
Case 50: 12 year old girl with superficial nodular tumor of back
Case 47: 16 year old girl with tumor of foot
Case 46: Elderly individuals with scapular masses
Case 34: 24 year old man with an inguinal soft tissue discharging chalky fluid
Case 29: 33 year old woman with soft tissue mass of cheek
Case 20: 22 year old man with Mafucci's syndrome and painful swellings of hands and feet
Case 16: 56 year old man with a retroperitoneal mass
Case 15: 62 year old man with a slowly enlarging thumb mass
Case 10: 30 year old man with a thigh lesion
Case 3: 90 year old woman with recurrent soft tissue tumor from the ankle region