Type of Preparation: Conventional Magnification: High Interpretation: Atypical endocervical cells Cytomorphologic Criteria: Sheet of cells with crowding and overlapping of nuclei. Note the presences of a variety of cell types (goblet, ciliated, peg). Some cells demonstrate relative hypochromasia or a "washed-out" appearance. Explanatory Notes: Cell groups from tubal metaplasia may raise the differential diagnosis of endocervical adenocarcinoma in situ. However the hyperchromatic elongated nuclei of AIS are absent. Follow-up: Cells are probably derived from tubal metaplasia