Unique presentation of Merkel cell tumour affecting the hand

Merkel cell carcinoma (MCC) is a rare and highly aggressive skin cancer which most commonly occurs on the head and neck. A limited number of cases of MCC of the hand have been reported in the English literature. We describe a case of MCC of the hand in a man in his late 60s. The lesion presented on the dorsum of the left fifth digit, with metastasis to the left axillary lymph nodes. The primary lesion grew rapidly over a span of 3 months. The patient was treated with two courses of neoadjuvant nivolumab, amputation of the digit and left axillary lymph node resection followed by radiotherapy to the left hand and left axilla. He continues to follow-up for radiotherapy treatment 3 months postoperatively.