Skin-nontumor / Clinical dermatology
Infestations
Scabies (mite)

Author: Mowafak Hamodat, M.D., MB.CH.B, MSc., FRCPC (see Authors page)

Revised: 2 June 2016, last major update July 2011

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PubMed Search: Scabies (mite)

Cite this page: Scabies (mite). PathologyOutlines.com website. http://pathologyoutlines.com/topic/skinnontumorscabies.html. Accessed December 8th, 2016.
Definition / General
  • Mite that produces burrows and extremely pruritic erythematous papules on interdigital skin, palms, wrists
Diagrams / Tables

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Life cycle

Treatment
Micro Description
  • Burrow appears as cleft in upper epidermis containing mite body parts
  • Epidermis exhibitis acanthosis, parakeratosis, spongiosis, with dense eosinophilic dermal infiltrate
  • In the dermis, there is superficial perivascular and sometimes diffuse infiltrate of lymphocytes and histiocytes, sometimes accompaned by neutrophils and less often eosinophils
  • In nodular skin lesions, the dermal infiltrate may be very dense and in addition to histiocytes, plasma cells, eosinophils, and lymphocytes, atypical and hyperchromatic cells may be evident
Micro Images

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Contributed by Dr. Daniel Ostler



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Mite