Objective: To detect a direct transition from a haemorrhagic corpus luteum to an endometriotic cyst by serial transvaginal ultrasonographic scans. Design: Prospective observational study. Setting: An academic tertiary care and referral centre for women with endometriosis. Population: One hundred and nine women younger than 40 years, with regular menstrual cycles, undergoing first-line surgery for endometriomas, and not wanting postoperative oral contraception. Methods: Three-monthly transvaginal ultrasonography during the luteal phase for 2 years after surgery. Main outcome measure: Sonographic identification of progression from a haemorrhagic corpus luteum to a recurrent endometriotic cyst. Results: A haemorrhagic corpus luteum was identified in 13 women. Serial ultrasonographic scans demonstrated transition to an endometriotic cyst in 11 (85%) instances and resorption in two. A unilateral endometriotic cyst without previous detection of a cystic corpus luteum was observed in 14 women. Conclusions: Bleeding from a corpus luteum appears to be a critical event in the development of endometriomas.
|Number of pages||6|
|Journal||BJOG: An International Journal of Obstetrics and Gynaecology|
|Publication status||Published - Feb 2009|
- Corpus luteum
ASJC Scopus subject areas
- Obstetrics and Gynaecology