What type of study is this?

This is a Case Report study (also classified as: Literature Review).

What question did this study set out to answer?

To present a case of hidradenoma papilliferum and review relevant literature on its occurrence and characteristics.

February 22, 2026

Hidradenoma Papilliferum of the anus: a case report and literature review

Key Points

To present a case of hidradenoma papilliferum and review relevant literature on its occurrence and characteristics.
Case report detailing a single instance of hidradenoma papilliferum.
Literature review of existing cases in medical publications.
Hidradenoma papilliferum is predominantly observed in women aged 30 to 60.
The lesion usually presents as a slow-growing solitary nodule.
Vulvar lesions are reported more frequently than perianal lesions.

Abstract

Hidradenoma papilliferum (HP) is a rare, benign cystic tumour that occurs predominantly in women aged 30 to 60. 1 It is thought to originate from anogenital mammary-like glands, and therefore most commonly arises in the anogenital region with vulvar lesions reportedly four times more frequently than perianal lesions. 2 It usually presents as a slow-growing solitary, circumscribed nodule with size ranging between 0.5 cm and 2 cm. 3

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