Abstract
We present a case of hemothorax associated with endometriosis. A 45-year-old woman consulted the hospital for right lower abdominal pain. The symptom occurred within 5 days after the onset of menses. An abdominal CT scan revealed massive ascites and an enhanced mass on the right side of the uterus. Deterioration of anemia was noted, and bleeding from the right ovary was suspected. Laparotomy was performed. Pelvic endometriosis and about 1, 500 ml bloody ascites were found. Bilateral salpingo-oophorectomy was carried out. We identified right-sided pleural effusion on a postoperative roentgenogram. A drainage tube was inserted into the right thoracic cavity, and about 1, 300 ml of bloody pleural effusion was drained. Thoracoscopy was carried out the next day. Multiple brown spots were found on the parietal and visceral pleura and on the diaphragm. Purple spots and small pores were also found at the site of the central tendon of the diaphragm. Partial resection of the diaphragm and lung were performed. Ectopic endometriosis of the diaphragm was diagnosed pathologically.
