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Book

Dilated Pore of Winer

Conrad J. Benedetto  1 , Christopher A. Riley  2 , Leela Athalye
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
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Book

Dilated Pore of Winer

Conrad J. Benedetto et al.
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Excerpt

A dilated pore of Winer, first described by Louis H Winer in 1954, is a commonly occurring benign adnexal tumor of follicular differentiation. Although most commonly located on the head and neck, a dilated pore of Winer can also be found on the trunk of middle-aged and older individuals. These clinically present as an asymptomatic, solitary, enlarged pore with a keratin plug and normal surrounding skin. Prognosis is excellent for these lesions as they are benign and typically do not require any further testing or work-up. Histopathologic evaluation can confirm the diagnosis in uncertain cases. Removal can be performed via excision for cosmetic purposes.

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Conflict of interest statement

Disclosure: Conrad Benedetto declares no relevant financial relationships with ineligible companies.

Disclosure: Christopher Riley declares no relevant financial relationships with ineligible companies.

Disclosure: Leela Athalye declares no relevant financial relationships with ineligible companies.

References

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    1. Mittal RR, Sethi PS, Jha A. Dilated pore of Winer. Indian J Dermatol Venereol Leprol. 2002 Jul-Aug;68(4):239-40. - PubMed
    1. Steffen C. Winer's dilated pore: the infundibuloma. Am J Dermatopathol. 2001 Jun;23(3):246-53. - PubMed
    1. Morikawa T, Takizawa H, Ohnishi T, Watanabe S. Dilated pore: a case report and an immunohistochemical study of cytokeratin expression. J Dermatol. 2003 Jul;30(7):556-8. - PubMed
    1. WINER LH. The dilated pore, a tricho-epithelioma. J Invest Dermatol. 1954 Sep;23(3):181-8. - PubMed

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