Fig. 2

Histology and immunohistochemistry of the tumor. a Whole slide scan showing a cystic growth pattern with a partial solid area. H&E, × 4 magnification. b Tumorlet in the omentum. H&E, × 200 magnification. c Positive immunohistochemical staining for β-catenin (nuclear and cytoplasmic). The tumor cells are nuclear and cytoplasmic positive while the normal ovarian stromal cells on the right margin of the graph are positive on the membrane. Envision × 100 magnification. d The tumorlet in the omentum was positive for β-catenin (nuclear and cytoplasmic). Envision × 200 magnification