A Case of Onycholemmal Carcinoma in a 77-Year-Old Man

A 77-year-old man with a history of various health issues, including lung cancer, presented with a slow-growing, painful mass on his finger, diagnosed as onycholemmal carcinoma, a rare malignant tumor originating from the nail bed. The tumor was characterized by atypical keratinocytes and specific keratinization patterns. Despite surgical removal, the patient died 4 months later due to lung cancer progression. Onycholemmal carcinoma, often misdiagnosed due to its atypical presentation, requires careful examination and biopsy for accurate diagnosis. Treatment typically involves surgical removal, though less aggressive methods have shown promise.