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Updated: Jul 9, 2026

A Model for Perineural Invasion in Head and Neck Squamous Cell Carcinoma
Published on: January 5, 2017
Carcinoma arising in a perianal sinus tract: report of a case
Abstract:
The case of a woman who had had a perianal sinus tract for nine years, in whom squamous-cell carcinoma arose in the sinus tract, is presented. We believe that long-standing perianal sinus tracts should be examined carefully for tumor development. In suspected cases, a biopsy specimen should be obtained from the central part of the lesion.
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