title: Ruptured corpus luteal cyst: CT findings.
abstract: OBJECTIVE
  To evaluate the CT findings of ruptured corpus luteal cysts.
  
  
  METHODS
  Six patients with a surgically proven ruptured corpus luteal cyst were included in this series. The prospective CT findings were retrospectively analyzed in terms of the size and shape of the cyst, the thickness and enhancement pattern of its wall, the attenuation of its contents, and peritoneal fluid.
  
  
  RESULTS
  The mean diameter of the cysts was 2.8 (range, 1.5-4.8) cm; three were round and three were oval. The mean thickness of the cyst wall was 4.7 (range, 1-10) mm; in all six cases it showed strong enhancement, and in three was discontinuous. In five of six cases, the cystic contents showed high attenuation. Peritoneal fluid was present in all cases, and its attenuation was higher, especially around the uterus and adnexa, than that of urine present in the bladder.
  
  
  CONCLUSIONS
  In a woman in whom CT reveals the presence of an ovarian cyst with an enhancing rim and highly attenuated contents, as well as highly attenuated peritoneal fluid, a ruptured corpus luteal cyst should be suspected. Other possible evidence of this is focal interruption of the cyst wall and the presence of peritoneal fluid around the adnexa.
authors.affiliation: Department of Radiology, Seoul National University College of Medicine Institute of Radiation Medicine, Korea.
authors.forename: Hyuck Jae
authors.initials: HJ
authors.lastname: Choi
authors.forename: Seung Hyup
authors.initials: SH
authors.lastname: Kim
authors.forename: Sun Ho
authors.initials: SH
authors.lastname: Kim
authors.forename: Hyo-Cheol
authors.initials: HC
authors.lastname: Kim
authors.forename: Chang Min
authors.initials: CM
authors.lastname: Park
authors.forename: Hak Jong
authors.initials: HJ
authors.lastname: Lee
authors.forename: Min Hoan
authors.initials: MH
authors.lastname: Moon
authors.forename: Jun Yong
authors.initials: JY
authors.lastname: Jeong
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D010048:Ovarian Cysts / Q000000981:diagnostic imaging* / Q000473:pathology; D012189:Retrospective Studies; D012422:Rupture, Spontaneous; D014057:Tomography, X-Ray Computed