图示：卵巢无性细胞瘤，已被剖开。实质呈浅褐色外观，中央有一些胶原块。卵巢的无性细胞瘤肉眼和显微镜下表现基本上与男性睾丸的精原细胞瘤一致。

This is an ovarian dysgerminoma that has been sectioned into two halves. Note the pale brown appearance of the parenchyma, along with some central collagenous scar. The gross and microscopic appearance of an ovarian dysgerminoma is essentially the same as a seminoma of the testis in a male.