Superficial (early) endocervical adenocarcinoma in situ: a study of 12 cases and comparison to conventional AIS.

Abstract:Although established histologic criteria for the diagnosis of endocervical adenocarcinoma in situ (AIS) have been published, some lesions are not readily classified or present with more subtle degrees of epithelial atypia. Lesions confined to the surface mucosa may be particularly challengi