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Atypical Fibroxanthoma.

Lance W Chapman1,2, Siegrid S Yu1,2, Sarah T Arron3,2

  • 1Department of Dermatology, University of California San Francisco, San Francisco, CA.

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|May 4, 2019
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Summary
This summary is machine-generated.

Atypical fibroxanthoma (AFX) is a rare skin cancer. Complete surgical excision, particularly Mohs surgery, is the preferred treatment to minimize recurrence risk.

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Area of Science:

  • Dermatology
  • Oncology
  • Pathology

Background:

  • Atypical fibroxanthoma (AFX) is a superficial dermal sarcoma.
  • It presents as a nodule or papule, often on sun-damaged skin in the elderly.
  • AFX is considered a benign presentation of other pleomorphic dermal sarcomas.

Purpose of the Study:

  • To summarize the key characteristics of Atypical fibroxanthoma.
  • To highlight diagnostic criteria and treatment options for AFX.
  • To discuss the prognosis and recurrence rates of AFX.

Main Methods:

  • Review of clinical and histological features of AFX.
  • Discussion of diagnostic challenges, including immunohistochemistry.
  • Analysis of treatment outcomes, focusing on surgical excision and Mohs micrographic surgery.

Main Results:

  • AFX typically appears as a red or pink nodule on the head and neck.
  • Histology shows pleomorphic spindle cells in the dermis.
  • Diagnosis is often made by exclusion due to non-specific immunohistochemistry.

Conclusions:

  • Complete surgical excision, with Mohs surgery as the gold standard, is essential for AFX treatment.
  • While metastasis is rare, local recurrence is common, especially in immunosuppressed individuals.
  • AFX requires careful management due to its high local recurrence rate.