Hidradenocarcinoma of the Dorsum of the Hand

Hidradenocarcinoma originates in the eccrine glands located in sun-exposed areas and accounts for approximately 6% of malignant eccrine tumors and 〈0.001% of all skin cancers.[1,2] Hidradenocarcinoma usually presents as a solitary,firm,asymptomatic intradermal nodule measuring 1-5 cm,covered by intact or occasionally ulcerated purple-,pink-,or blue-colored lesions.[1] While hidradenocarcinoma typically grows slowly over many years,it may suddenly undergo a rapid increase in size.The differential diagnosis of hidradenocarcinoma is very challenging because the appearance of the lesion is benign and similar to that of other skin tumors.In this report,we present the case of a patient with hidradenocarcinoma who was treated with wide excision and full-thickness skin grafting.