Ovary with granulosa cell tumor of adult type

Clinical story

55 years old female with endometrioid adenocarcinoma of the uterine corpus, probably well-differentiated, confirmed by curettage. Additionally, chronic lymphocytic leukemia. Hysterectomy, bilateral salpingo-oophorectomy and selective lymphadenectomy.

Virtual microscopy of the slide

Alternative, virtual microscopy of the slide

Comments

Grossly, thickened endometrium without definitive myometrial infiltration. Both adnexae evaluated as normal by gross examination.

Microscopy: A 1.2 cm solid tumor in the right ovary. Tumor cells form pseudo-rosettes (Call-Exner bodies). The cells contain moderate amounts of cytoplasm with round to oval nuclei, which in many contain a longitudinal groove (‘coffee-bean’ nuclei). No mitoses are found.

Learning goals

To recognize Granulosa cell tumor as a sex cord stromal tumor; To identify Call-Exner bodies; To understand the differential diagnosis of this tumor and its hormone-producing potential; To understand its potential to become malignant.