Thoracic endometriosis syndrome (TES) is uncommon disease presented as catamenial pneumothorax, hemothorax, lung nodules and hemoptysis occurring within first 48-72 hours of menstruation. Endometriosis affects about 10% of women in reproductive age; incidence of extrapelvic endometriosis in these women is approximately 12%. The most frequent presentation of TES is pneumothorax (about 74%) while hemothorax is rare TES presentation (14%). The diagnosis is almost always established on clinical grounds.
Keywords: hemothorax, endometriosis, VATS.