Anal Squamous Intraepithelial Lesions
摘要
Anal squamous intraepithelial lesions are human papillomavirus-associated precursors to anal squamous cell carcinoma. Increased risk is seen in the presence of immunosuppression, especially human immunodeficiency virus (HIV) infection, urogynecologic dysplasia, inflammatory bowel disease, and solid organ transplantation. Anal squamous intraepithelial lesions can occur in anyone.