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Nodular hidradenoma in Adult
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Nodular hidradenoma in Adult

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Contributors: Karyn Alana Haitz BA, Susan Burgin MD, Lowell A. Goldsmith MD, MPH
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Synopsis

Nodular hidradenoma is a rare, benign adnexal tumor that displays apocrine differentiation in the majority of cases (clear cell hidradenoma) and eccrine differentiation (poroid hidradenoma) in the remainder. The two histopathologic types are indistinguishable clinically. A 0.5-3 cm firm nodule develops on the head, anterior trunk, or upper limbs, or any other cutaneous site less frequently. It grows slowly and may ulcerate.

Nodular hidradenoma is more common in females and can occur in any ethnicity and at any age including infancy, although it is most common in the fourth decade of life. There are currently no known risk factors. Local recurrence can also occur, especially with inadequate surgical excision.

Hidradenocarcinoma is a very rare malignant tumor that can arise from nodular hidradenoma, although it typically arises de novo.

Codes

ICD10CM:
D23.9 – Other benign neoplasm of skin, unspecified

SNOMEDCT:
253020008 – Hidradenoma of skin

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Last Updated: 07/20/2016
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Nodular hidradenoma in Adult
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Nodular hidradenoma : Smooth nodule
Clinical image of Nodular hidradenoma
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