Expectant management surveillance for patients at risk for invasive squamous cell carcinoma of the anus: a large US healthcare system experience

To determine the impact of expectant management surveillance for patients at risk for squamous cell carcinoma of the anus (SCCA). Adult patients at risk for anal cancer, specifically those with human immunodeficiency virus (HIV) or known human papilloma virus (HPV) infections (anal dysplasia, anogenital warts, cervical dysplasia, or cervical cancer), underwent expectant management surveillance with targeted therapy of only grossly abnormal or...