Acquired digital fibrokeratoma

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Acquired digital fibrokeratoma is a rare benign skin tumour.[1]

General

  • May be due to trauma.[2]

Gross

  • Well circumscribed nodule.

Microscopic

Features:[2]

  • Acanthotic epidermis.
  • Fibrotic dermis with "vertically oriented" collagen bundles.
    • "Vertically oriented": deep to superficial (as opposed to along the surface of the skin).

DDx:

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Skin Lesion, Left Fifth Digit, Excision:
     - Acquired digital fibrokeratoma. 

Comment:
Acquired digital fibrokeratoma is a benign skin lesion. Trauma may play a role in its formation. 

See also

References

  1. Shih S, Khachemoune A (February 2019). "Acquired digital fibrokeratoma: review of its clinical and dermoscopic features and differential diagnosis". Int J Dermatol 58 (2): 151–158. doi:10.1111/ijd.14046. PMID 29777543.
  2. 2.0 2.1 Mancuso CJ, Magro CM, Lipner SR (June 2019). "Acquired digital fibrokeratoma presenting as a painless nodule on the right fifth fingernail". Cutis 103 (6): 340–342. PMID 31348447.