Mucinous carcinoma of the skinの1例

Mucinous carcinoma of the skin is a rare sweat-gland neoplasm with a tendency to recur, but metastases to regional lymph nodes and widespread metastases are uncommon. We experienced a case of mucinous carcinoma of the skin in the axilla with metastases to the axillary lymph nodes. A 69-year-old man had a 2-year history of a slowly growing papule on the left axilla. Physical examination revealed a dark purple-red, elastic hard, dome-shaped tumor with 7.5×6×1.5cm, on the left axilla. The tumor with left axillary lymph nodes were totally excised. Histopathology revealed small islands of tumor cells floating in large pools of mucin, separated by thin fibrovascular septa. The patient had no recurrence after 1 year, however, CT scan revealed several small lesions in the lungs considered as metastases of mucinous carcinoma.