<unk>  is a rare skin condition characterized by a plaque or nodule on the scalp, trunk, or extremities. It originates from the<unk>  sweat glands of the skin, accounting for less than 0.01% of diagnosed cutaneous malignancies.<unk>  tumors are locally aggressive, with a high rate of recurrence. Lack of reliable immunohistochemical markers and similarity to other common tumors has made identification of<unk>  difficult. Most<unk> s which have not spread can be cured by wide local excision. However, metastatic disease carries a poor prognosis.
Eccrine carcinoma
Apocrine gland carcinoma
Microcystic adnexal carcinoma
Cylindroma
Ductal carcinoma
Hidradenocarcinoma
Trichoblastoma
Adenoacanthoma