Welcome to IANS

We are the world's first professional society devoted to the prevention and treatment of AIN (anal intraepithelial neoplasia) and anal cancer.

Our mission is to provide a forum for individuals with a broad spectrum of backgrounds, viewpoints and geographic origin, an exchange of ideas and dissemination of knowledge regarding the pathogenesis, diagnosis, treatment and prevention of anal neoplasia. 


IANS Europe Corner

Patient Seminar (Recording)

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Upcoming events

IANS Scientific Meeting 2023

More info to come

Translating Knowledge to Action  Making anal cancer history

Career Center

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The International Anal Neoplasia Society

P.O. Box 1543
Leesburg, Virginia 20177


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