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Dermatofibrosarcoma protuberans (DFSP) is a rare skin sarcoma that can mimic basal cell carcinoma. Early diagnosis and complete excision are crucial for curative treatment of DFSP.

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Area of Science:

  • Dermatology
  • Oncology
  • Pathology

Background:

  • Dermatofibrosarcoma protuberans (DFSP) is a rare, slow-growing soft tissue sarcoma.
  • DFSP incidence is higher in individuals of African American descent compared to Caucasians.
  • Risk factors include race, age, and history of skin trauma.

Observation:

  • An 81-year-old man presented with an indurated chest plaque featuring a pearly, red-brown nodule with central ulceration.
  • Initial suspicion was basal cell carcinoma due to the lesion's appearance.
  • Histological examination revealed dermal spindle cell proliferation, confirming DFSP.

Findings:

  • Biopsy confirmed dermatofibrosarcoma protuberans (DFSP) with characteristic storiform pattern and CD34 positivity.
  • DFSP can present with varied morphologies, including papular, nodular, and atrophic plaques, often mimicking basal cell carcinoma.
  • Complete surgical excision is the recommended curative treatment for DFSP.

Implications:

  • Accurate diagnosis of DFSP is essential, as it can be mistaken for other skin conditions like basal cell carcinoma.
  • Maintaining DFSP in the differential diagnosis is critical for patients with slowly progressing nodules or indurated plaques.
  • Increased awareness of DFSP presentation and higher prevalence in African Americans can improve diagnostic timeliness.