Malignant eccrine tumor--a case report and a classification of tumors of eccrine sweat apparatus

A case of malignant eccrine tumor and its histological findings were reported. In this case, we considered basal cell carcinoma or malignant melanoma clinically; however, the histological features matched those of malignant eccrine tumor. It has been said that it is very difficult to determine the origin of tumors of sweat apparatus; to contribute to this ongoing dialogue, the classification of tumors of eccrine sweat apparatus was also discussed.