After reviewing all photos I feel this is a benign process. My impression is an ovarian sex cord-stromal tumor,steroid cell tumor. Immunostians for Inhibin and calretinin should be strongly positive for steroid cell tumor. Some sections show the fat cells and some small cells (cannot see clearly in low power). You can read the slides with high power and try to see if myelolipoma is present. Based on  the history (3 months), ruptured hemorragic corpus luteum should be considered also. Before you jump in any daignosis you should read the imaging films or reports and know  the relation of the pelvic mass to the ovary.

Just for your reference, cqz

 总体感觉象是炎症反应。

建议：复习第一次手术时的肌瘤切片；图7~9的泡沫细胞较单一，建议进行细菌染色、培养排除某些特异性的细菌感染；排除组织细胞增生类疾病，黄色肉芽肿性炎待鉴别。

期待结果