Classification

 ovarian epithelial tumors

 ovarian serous tumors

 ovarian mucinous tumors

 ovarian sex cord-stromal tumors

• thecoma-fibroma group
  • thecoma and fibrothecoma
  • ovarian fibroma

 ovarian germ cell tumors

• ovarian teratoma

Macroscopical appearance

 ovarian cystic tumors
 ovarian surface epithelial tumors

Differential diagnosis

 ovarian tumor-like lesions

• follicle cyst
• corpus luteum cyst
• ovarian remnant syndrome
• polycystic ovarian disease (PCOD)
• stroma hyperthecosis
• ovarian stromal hyperplasia
• ovarian massive edema
• ovarian fibromatosis
• hilus Leydig cell hyperplasia
• ovarian simple cyst
• ovarian idiopathic calcification
• uterus-like adnexal mass
• splenic gonadal fusion
• pregnancy luteoma
• hyperreactio luteinalis
• large solitary luteinized follicle cyst of pregnancy and puerperium
• granulosa cell proliferations of pregnancy
• hilus Leydig cell proliferation of pregancy
• ectopic decidua
• ovarian pregnancy
• ovarian endometriosis (ovarian endometriotic cyst)
• ovarian granulomas
  • ovarian foreign body granulomas
  • ovarian palisading granulomas
  • ovarian granulomas secondary to systemic diseases

• ovarian infections
  • ovarian bacterial infections
    • ovarian actinomycosis
    • ovarian tuberculosis
    • ovarian malacoplakia

• mesothelial proliferations
• surface epithelial-stromal proliferation
• autoimmune oophoritis
• ovarian torsion
• ovarian infarction
• ovarian changes secondary to metabolic diseases
• mucicarminophilic histiocytosis

See also

 ovarian carcinomas
 ovarian tumorigenesis

References

 Shih IeM, Kurman RJ. Ovarian tumorigenesis: a proposed model based on morphological and molecular genetic analysis. Am J Pathol. 2004 May;164(5):1511-8. PMID: #15111296#