II. Background

  1. Seen early in pregnancy and resolves by mid-pregnancy
  2. Result from failed Ovulation

III. Symptoms

  1. Asymptomatic in many cases
  2. Acute Pelvic Pain occurs in Hemorrhagic Ovarian Cyst

IV. Radiology: Ultrasound findings

  1. Size: 3-8 cm in diameter
  2. Thin-walled, anechoic cyst
  3. Round or oval

V. Course

  1. Immature follicle contains unresorbed fluid
  2. With Ovulation, cyst-lining granulosa cells luteinize
  3. Follicular cyst transitions to corpus luteum
  4. Corpus luteum grows >2.5 cm, forms Corpus Luteal Cyst

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