Clinical

• indications
  • incidental cyst
  • suspicious mass
  • recurrence
  • tubo-ovarian abscess
• benign US features
  • small
  • thin wall
  • no septation, papillarity, solid areas
  • low echogenicity

Negative for malignancy

• Normal
• Non-neoplastic cyst
  • follicular cyst
  • corpus luteum cyst
  • endometriotic cyst
  • simple ovarian cyst
  • parovarian cyst
  • paratubal cyst

Atypical cells present

Suspicious for malignancy

Neoplastic cells identified

• Benign epithelial cyst
  • serous tumor
  • mucinous tumor
  • Brenner tumor
• benign GCT
  • teratoma
  • granulosa cell tumor
  • thecoma
  • fibroma
• carcinoid tumor

Positive for malignancy

• serous
• mucinous
• endometrioid
• clear cell carcinoma
• GCT
  • teratoma
  • dysgerminoma
  • embryonal carcinoma
• metastasis