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Skin - Nonmelanocytic tumors

Benign nonmelanotic epidermal tumors / tumor-like lesions

Acquired digital fibrokeratoma

Reviewer: Christopher Hale, M.D. (see Reviewers page)
Revised: 20 June 2012, last major update June 2012
Copyright: (c) 2001-2012, PathologyOutlines.com, Inc.

General
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● Rare solitary lesion of acral skin
● Middle-aged men, often at interphalangeal joints
● Fingers and toes > palms or soles

Case reports
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● 50 year old man with pedunculated heel lesion (Dermatol Online J 2008;14:10)

Gross description
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● Dome-shaped

Micro description
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● Collagenous protrusions covered by hyperkeratotic epithelium, dermis lacks adnexae

Differential diagnosis
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● Supernumerary digit

End of Skin - Nonmelanocytic tumors > Benign nonmelanotic epidermal tumors / tumor-like lesions > Acquired digital fibrokeratoma

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