Hidradenoma papilliferum is a rare, benign adnexal tumor considered to be of apocrine origin that occurs almost exclusively in females on the anogenital area. Ectopic or non-anogenital hidradenoma papilliferum is rare. But ectopic hidradenoma papilliferum associated with pilomatricoma has not been described in literature to our knowledge. We describe a case of hidradenoma papilliferum associated with pilomatricoma presenting with an intradermal nodule, 1cm in diameter on the right side of the back of the neck with history of 15 years duration. This case is reported because of its rarity.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.