Figure 1.

(A) Atypical polypoid adenomyomas (APA) under a hysteroscope. (B) Macroscopic findings of the APA. The lesions have a shape of endometrial polyp (arrow) with or without stalk. The lesions commonly locate in the lower segment of the uterine. (C) The microscopic findings of APA (H&E staining, original magnification ×40). The epithelium of APA is composed with atypical endometrial glands which are interspersed, clustered, or in lobules. The glands derive from endometrium with squamous metaplasia (mulberry-like) and atypical cells at varying degrees. Myofibromatous stroma are present among the glands.