endocrine gland neoplasm granulosa cell tumor A slow-growing, malignant tumor, characterize by the presence of granulosa-like cells and Call-Exner bodies, that is almost always found in the ovary. In rare cases, it has also been found in the testicle. There are two types of granulosa cell tumor that can be distinguished under the microscope: the adult and the juvenile. The testicular juvenile granulosa cell tumors are perhaps the most common congenital testicular neoplasms. tumour of granulosa cell GRCT ONCOTREE:GRCT tumor of granulosa cell granulosa cell neoplasm granulosa cell tumor, sarcomatoid MEDGEN:6676 neoplasm of granulosa cell granulosa cell tumor, undetermined granulosa cell tumor MESH:D006106 DOID:2999 MONDO:0006036 granulosa cell tumor, adult type (morphologic abnormality) granulosa cell neoplasm (disease) EFO:1000032 NCIT:C3070 UMLS:C0018206 sex cord-stromal tumor