Primary Eccrine Porocarcinoma of the Thumb With Metastasis: A Rare Case Report and Literature Review
2021
ABSTRACT Eccrine porocarcinoma (EPC) is a rare malignant sweat gland tumor that accounts for approximately 0.005% of all cutaneous carcinomas. It favors the lower extremities. Only 3% of EPCs are on the hand, and only 6 cases occurring specifically on fingers have been previously documented. However, we met a patient with EPC presenting the primary lesion on the left thumb and an extensive cutaneous metastasis on the left forearm. Pathologic findings of axillary lymph nodes confirmed lymphatic metastasis.
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