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Bone
Bone forming tumors other than osteosarcoma
Osteoma

Author: David Lucas, M.D. (see Reviewers page)
Revised: 12 August 2013, last major update May 2013
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.

General
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Terminology
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Epidemiology
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Sites
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Etiology
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Clinical features
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Diagnosis
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Radiology
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Xray images
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Various images

Coronal CT scan of an osteoma impinging on the orbit

Dense lobular mass in frontal sinus


Prognostic factors
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Case reports
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Treatment
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Clinical images
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Large osteoma of maxillary sinus

Exophytic osteoma ("ivory exostosis")

Multiple bony hard swellings on forehead

Gross description
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Gross images
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Osteoma with smooth bosselated surface

Osteoblastoma-like osteoma with polypoid shape and bosselated surface (left) and zones of dense, compact and trabecular bone on cut section

Skull - contributed by Dr. Mark R. Wick

Micro description
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Micro images
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Dense, compact bone and Haversian canals

Broad trabeculae of lamellar bone

Areas indistinguishable from osteoblastoma

Pagetoid bone with basophilic reversal lines

Various images


Skull - contributed by Dr. Mark R. Wick

Thick trabeculae of bone

Differential diagnosis
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End of Bone > Bone forming tumors other than osteosarcoma > Osteoma


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