Anal intraepithelial lesions squamous
Management of Anal Squamous Intraepithelial Lesions
The term Anal Intraepithelial Neoplasia (AIN) describes the microscopic finding of dysplastic, nonmalignant cells in the anal canal. AIN has been subdivided into AIN I, II, and III, representing low, moderate, and highgrade dysplasia. This dysplasia has been thought to arise as a result of local infection with the Human papillomavirus. The
The Anal Pap Smear: Cytomorphology of squamous
The two acronyms used to describe anal lesions are HSIL and LSIL. HSIL is an acronym for high grade squamous intraepithelial lesion, and LSIL means low grade squamous intraepithelial lesion. A lesion is an area of abnormal tissue, and high grade versus low grade refers to the likelihood that it will progress to cancer.
HSIL and LSIL Anal Cancer Information
Anal cancer is cancer that starts in the anus. The anus is the body's opening at the lower end of the intestines. Dysplasia in cells of the anus is also called anal intraepithelial neoplasia (AIN) or anal squamous intraepithelial lesions (SILs). Depending on how the cells look, AIN or anal SIL can be divided into 2 groups: