Anal mapping and biopsy

Clinical guideline Photograph: Alamy.

In addition to the vaccine study mentioned above, the Foundation supports a clinical trial that is looking at a checkpoint inhibitor, nivolumab.

Park and Palefsky stated that the incidence of HPV-associated anal cancer in MSM is striking and has not been mitigated by the use of highly active anti-retroviral therapy. The anal Pap test should be repeated in six to 24 months, depending on what risk factors you have.

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When the cells in the anal lining become abnormal and grow out of control, they can become cancerous.

Anal Pap test: A swab is inserted into the anus to obtain cells for a pathologist to evaluate for cancer. Your doctor will take a sample of tissue a biopsy from any abnormal areas.

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