At higher magnification, an ovarian granulosa cell tumor has nests of cells which are forming primitive follicles.高倍镜示：卵巢颗粒细胞瘤有形成原始滤泡的细胞巢。
Microscopically, the granulosa cell tumor attempts to form structures that resemble primitive follicles, as seen at the 镜下，颗粒细胞瘤趋向于形成类似于原始的滤泡的结构，如图左示。大多数在组织学上呈良性，但一些是恶性的。