Anatomic Pathology Selected Abstracts, 6/14
June 2014—Utility of triple antibody cocktail intraurothelial neoplasm-3 and AMACR in urothelial CIS and reactive urothelial atypia: Urothelial carcinoma in situ (CIS) is a prognostically and therapeutically significant lesion with considerable morphologic overlap with reactive conditions, especially in the setting of prior therapy. Various markers, including CK20, CD44s, and p53, have been used as an adjunct in making this distinction.