hidradenomas

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Definition: Hidradenoma refers to a benign adnexal tumor of the apical sweat gland.

Images

 solid-cystic hidradenoma

• https://twitter.com/angeldeoromx/status/718257638526619654
• https://twitter.com/JMGardnerMD/status/832953323749793793

These are 1-3 cm translucent blue cystic nodules.It usually presents as a single, small skin-colored lesion, and is considered distinct from the closely related poroma.

Hidradenomas are often sub-classified based on subtle histologic differences, for example:

 solid-cystic hidradenoma / nodular and cystic Hidradenoma

• https://twitter.com/angeldeoromx/status/718257638526619654

 clear-cell hidradenoma or acrospiroma
 nodular hidradenoma or acrospiroma

Localization

 mammary hidradenoma
 vulvar hidradenoma

Variants

 acral acrospiroma with mucinous differentiation

See also

 tumors
 mucinous differentiation
 adnexal sweat gland tumors