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. 


Career Center

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Upcoming events

Scientific Meeting

Save the Date!

Webinar - March 21, 2021

The Anal Cancer Foundation's webinar "Taking Care of You: Tips and Exercises to Restore Your Pelvic Health After Chemoradiation" is a video resource for patients and their caregivers.  A blog post with the exercises and resources is available here ( https://www.analcancerfoundation.org/pelvic-pt-webinar-2021). Please contact ACF with any questions at connect@analcancerfoundation.org

COVID-19 Guidelines

For IANS guidelines click on the link

Full Guidelines

To view IANS response to the recent article in Colorectal Disease click the link

Full Article

The International Anal Neoplasia Society

P.O. Box 1543
Leesburg, Virginia 20177


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