Corpus luteal cyst rupture

Ruptured corpus luteal cysts are one of the commonest causes of spontaneous haemoperitoneum in a woman of reproductive age.

Presentation is variable, ranging from completely asymptomatic to severe abdominal pain due to peritoneal irritation.

Pathology

The corpus luteum is a thick-walled cystic structure that is prone to internal haemorrhage, and sometimes peritoneal rupture.

  • complex adnexal cyst
  • rim of increased echogenicity surrounding a cystic component
  • free fluid with areas of increased echogenicity representing hemoperitoneum
  • on Doppler, peripheral vascularity may be seen ("ring of fire sign") 
  • at times the entire rupture and haemorrhage form an organised haematoma and a complex vascular adnexal mass
  • well circumscribed cystic lesion
  • thick walled cyst (<3 mm) with inhomogeneous contrast enhancement
  • high attenuation component (45-100 HU)
  • “fluid-fluid hematocrit” level
  • hemoperitoneum with free fluid near the source of bleeding can have high attenuation value (60-65 HU), “sentinel clot” and the attenuation of free fluid reduces further from the source

Possible considerations include:

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Article information

rID: 35715
Tags: refs, cases
Synonyms or Alternate Spellings:
  • Corpus luteal cyst rupture
  • Ruptured corpus luteal cyst
  • Ruptured corpus luteum

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