Syringadenocarcinoma papilliferum

A giant tumor developed on the right chest wall of a 52‐year‐old housewife over a 20‐year period. It was accompanied by a spider‐like invasion of skin, and a lymph node was palpated in the right axilla. Wide excision of the lesion was carried out. The cross‐section of the tumor showed two different appearances. The tumor was histologically diagnosed as a syringadenocarcinoma papilliferum. The post‐operative course was uncomplicated and without evidence of recurrence.