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Dermatology Online Journal

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Apocrine hidrocystoma: a slowly growing postauricular translucent nodule


Apocrine hidrocystoma is a benign, cystic proliferation of the apocrine sweat gland that may present commonly on sun-exposed areas of the head and neck. However, given its location and features, apocrine hidrocystomas may often be confused with malignant tumors such as basal cell carcinomas or primary cutaneous mucinous carcinomas. Herein, we present an unusual case of an apocrine hidrocystoma presenting in the postauricular region and highlight the importance of histopathological examination of cystic tumors on the periauricular area.

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