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Apocrine cystadenoma is a benign nevoid tumor of the skin occurring most commonly on the face. The tumor appears as a domeshaped translucent nodule. In more than half of the cases the lesion is pigmented, resembling a blue nevus, pigmented nevus, or pigmented basal cell epithelioma. It must be taken into consideration in the differential diagnosis of the pigmented lesions on the face.
Amir H. Mehregan (Tue,) studied this question.