A 31-year-old male presents with a non-healing, swollen, painless, ulcerated nodule on the dorsum of the right foot. The patient reports that the lesion initially presented at least 2 years ago as a subcutaneous nodule.
Clinical differential diagnosis:
1. Ulcer, with or without infection
2. Squamous cell carcinoma
3. Adnexal Tumor
What is your diagnosis? (Pathologic differential diagnoses):
a) granuloma annulare
b) epithelioid sarcoma
c) synovial sarcoma
d) squamous cell carcinoma
e) epithelioid hemangioendothelioma
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