F 42, perianal skin
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In middle aged woman on the pubis, and perineal and perianal skin.
Rarely in upper eyelid and nipple.
– Well circumscribed, encapsulated dermal tumor without any connection to the overlying epidermis.
– Tubular and cystic epithelial structures with projecting papillary folds lined by one layer of columnar cells with “decapitation” secretion towards the lumen, as seen in apocrine glands.
– There is an outer layer of small cuboidal cells with basophilic nuclei representing myoepithelial cells.
– The tumor is a benign adnexal neoplasm of apocrine gland origin.