Fig. 4
From: Anaplastic carcinoma in ovarian seromucinous cystic tumor of borderline malignancy
Microscopic and immunohistochemical cyst wall findings. a Hematoxylin and eosin-stained section showing epithelium with papillary hyperplasia in the cyst wall. The epithelium is mucinous and shows dysplasia. b Cyst wall showing negative immunohistochemical staining for WT-1. c Cyst wall showing positive immunohistochemical staining for estrogen receptor. d Cyst wall showing positive immunohistochemical staining for vimentin