TriangleHEALTH PROFESSIONAL · SOURCE READING
Treatment Options for Stage 0 Anal Cancer
Source: Anal Cancer Treatment (PDQ®)–Health Professional Version, National Cancer Institute.
Source updated: February 12, 2025 · Captured 2026-09-09.
Selected source text with whitespace normalised. This Triangle page is not an NCI PDQ summary.
Context: Treatment of Stage 0 Anal Cancer
Stage 0 anal cancer is carcinoma in situ. Rarely diagnosed, it is a very early cancer that has not spread below the limiting membrane of the first layer of anal tissue.
Treatment options for stage 0 anal cancer include:
Source links and citations
Surgical resection is used to treat lesions of the perianal area not involving the anal sphincter. The surgical approach depends on the location of the lesion in the anal canal.
Preserved source evidence · Not medical advice