Lesions

 tumor-like lesions

• follicle cyst
• corpus luteum cyst
• ovarian remnant syndrome
• polycystic ovarian disease
• stromal hyperthecosis
• stromal hyperplasia
• ovarian massive edema
• ovarian fibromatosis
• hilus leydig cell hyperplasia
• ovarian simple cyst
• idiopathic calcification
• uterus-like adnexal mass
• splenic-gonadal fusion
• pregancy luteoma
• hyperreactio luteinalis
• large solitary luteinized follicle cyst of pregnancy and puerperium
• granulosa cell proliferations of pregnancy
• hilus leydig cell proliferation of pregnancy
• ectopic decidua
• ovariuan pregnancy
• ovarian endometriosis

 ovarian inflammation

• ovarian acute inflammation
• ovarian granulomas

 mesothelial proliferation
 surface epithelial-stromal proliferation
 ovarian torsion
 ovarian infarction
 ovarian amylosis
 mucicarminophilic histiocytosis