良性的卵巢黄体膜囊肿。左侧可见黄体细胞形成了囊肿的内层，包围在旁边的是卵泡膜细胞。这些囊肿的直径一般不大于几厘米。
This is a benign theca lutein cyst in an ovary. Note the luteinized cells forming the inner cyst lining at the left, with adjacent surrounding theca cells. These cysts are rarely more than a few centimeters in diameter.