Anal intraepithelial neoplasia (AIN) is a premalignant lesion for anal cancer. It is more commonly found in high-risk patients (e.g., human papilloma virus (HPV)/human immunodeficiency virus infections, post-organ transplantation patients, and men ...

Healthcare providers may refer to anal dysplasia as anal intraepithelial neoplasia (AIN) or as squamous intraepithelial lesions (SILs). Providers place AIN/SILs in two categories. They do that by examining cells under a microscope. AIN/SILs categories are:

2023年7月6日 · Anal intraepithelial neoplasia (AIN) is a precancerous growth made up of abnormal squamous cells in the anus or anal canal. If left untreated, AIN can turn into a type of anal cancer called squamous cell carcinoma over time.

2022年1月12日 · Anal intraepithelial neoplasia (AIN): premalignant dysplasia of the perineal and anal epithelium, driven by HPV, may progress to anal cancer. Incidence: anal cancer <1% of new cancers in UK, increasing incidence; high-risk groups …

All growths and abnormal changes in the epithelial (skin) cells in and around the anal area are known as AIN (anal intraepithelial neoplasia). These changes are associated with infection with HPV (the human papillomavirus), which is a risk factor for anal cancer.

2023年8月9日 · Anal neoplasia caused by HPV can manifest as preinvasive (squamous intraepithelial lesions [SIL]) or invasive (anal cancer) disease. The epidemiology, clinical manifestations, diagnosis, screening, prevention, and treatment of anal SIL are discussed here.

Anal intraepithelial neoplasia means there are abnormal cells in the lining of your anus. A pathologist looks at your cells under a microscope to check whether your anal cells look different to a normal anal cell.

Dysplasia in cells of the anus is 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:

Weis S E, Vecino I, Pogoda J M. et al. Prevalence of anal intraepithelial neoplasia defined by anal cytology screening and high-resolution anoscopy in a primary care population of HIV-infected men and women.

2011年11月4日 · Anal intraepithelial neoplasia usually precedes development of invasive squamous anal carcinoma and can present in various forms. The management of anal cancer has changed in recent years; chemo-irradiation rather than surgery is …