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Case Reports
. 2017:2017:9019682.
doi: 10.1155/2017/9019682. Epub 2017 Dec 31.

Perianal Comedones: A Rare Incidental Finding

Priscilla R Powell  1 , Juana Irma Garza-Chapa  2 , Joseph S Susa  3 , Stephen E Weis  4
Affiliations
Case Reports

Perianal Comedones: A Rare Incidental Finding

Priscilla R Powell et al. Case Rep Dermatol Med. 2017.

Abstract

Comedones occur when an overproliferation of keratinocytes blocks sebum secretion in a pilosebaceous duct. Comedones have multiple possible etiologies and contributing factors. While comedones are common to acne, they are also seen in occupational exposures and are associated with certain syndromes. We describe a particularly rare case of comedones at the perianus that is not associated with any known exposure or disease and is a rare incidental finding.

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Figures

Figure 1
Figure 1
Numerous comedones symmetrically distributed around the perianus at the anal verge.
Figure 2
Figure 2
(a) A shave biopsy demonstrating two open comedones, note the wide opening and the thin epithelial lining (40x). (b) A close-up view of one lesion, showing the keratinous material and the multiple hair shaft fragments (100x).
See this image and copyright information in PMC

References

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