• Hsin-Yuan Fang, Chia-Ing Jan, Chien-Kuang Chen, and William Tzu-Liang Chen.
• Department of Surgery, China Medical University, Taichung, Taiwan.
• Resp Care. 2012 Jul 1; 57 (7): 1182-5.

AbstractCo-existence of catamenial pneumothorax and hemoptysis is rare. We present a case of catamenial pneumothorax due to bilateral pulmonary endometriosis in a 45-year-old woman. The patient presented with a 3-year history of intermittent productive cough with blood-tinged sputum, chronic anemia, loss of appetite, and general weakness associated with menstruation. Three years prior to this presentation the patient had undergone a sigmoidectomy as treatment for endometriosis of the sigmoid colon with bleeding. Chest radiographs and computed tomography (CT) scan revealed multiple nodules in both lung parenchyma and recurrent pneumothorax. CT-guided biopsy revealed chronic inflammation of those pulmonary nodules, and laboratory studies disclosed elevated serum levels of carbohydrate antigen 19-9 (CA 19-9) and CA 125. Thoracoscopic wedge resection of the pulmonary nodules was performed, and histopathological examination of the resected nodules revealed endometriosis. At one-year follow-up there was no evidence of recurrence of gastrointestinal bleeding or pneumothorax.

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