ESTRO 2025 - Abstract Book

S1206

Clinical – Lower GI

ESTRO 2025

Conclusion: Low risk of regional recurrence in the upper pelvic and the external iliac LNS does not justify their inclusion in the elective nodal CTV for early squamous cell anal canal cancer patients.

Keywords: Anal canal cancer, CTV, Elective nodal irradiation

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*Acknowledgement: Manuscript written during Harvard Medical School Clinical Scholar Research Training Program, facilitated by the Polish Medical Research Agency.