Zuo Z, Wu W, Li X, Zhang L, Wang J, Guo Z, Hu S, Zhang Q. Perianal Paget disease associated with non-invasive colorectal adenoma.
J Cutan Pathol 2023;
50:35-38. [PMID:
35980771 PMCID:
PMC10087263 DOI:
10.1111/cup.14314]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/09/2022] [Accepted: 08/15/2022] [Indexed: 01/03/2023]
Abstract
Perianal skin Paget disease (PPD) is an unusual subtype of extramammary Paget disease, which is usually caused by a primary intraepithelial adnexal tumor and secondary spread from colorectal adenocarcinoma. The reports of secondary PPD associated with non-invasive colorectal adenoma are rare. We report a rare case of non-invasive colorectal-adenoma-associated PPD. In this case, the intraepithelial Paget cells of perianal skin manifested with colorectal phenotype by immunohistochemistry, and adjacent adenomas had high-grade intraepithelial neoplasia but not invasion. Although this is a rare manifestation of PPD, understanding this phenomenon is important to prevent overdiagnosis and invasive overtreatment. Clinical management is variable and, therefore, close follow-up examination is necessary.
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