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

New!European Task Force Monthly Meetings 

Join the committee the first Thursday of the month 
at 17:00 GMT +2

Next Meeting May 9, 2024

Join the Task Force Meeting

Watch Recording

Upcoming Courses

Career Center

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IANS Podcast


Scientific Meeting - 2025

March Patient Seminar (recording)

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The International Anal Neoplasia Society

P.O. Box 1543
Leesburg, Virginia 20177


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