[Ultrasonically guided puncture of endometrial cysts--aspiration of contents and infusion of ethanol].

Ultrasonically guided transvaginal or transabdominal puncture of an endometrial cyst with a transvaginal or transabdominal sector probe was done safely and correctly. In 7 endometrial cysts in 5 patients, we aspirated the contents, flushed with saline solution and cleaned the interior cysts. At last 99.9% ethanol was infused into 6 cysts for 30 minutes. In all cases puncture of the endometrial cyst was successful and the contents of the endometrial cyst were collected. There were no major side effect and no recurrence of endometrial cyst. It was proven that the aspiration of contents and infusion of ethanol were superior methods for treating endometrial cysts.