RESUMEN
Periodic hemoptysis occurring at the time of menstruation (catamenial hemoptysis) is a rare disorder and generally signifies indicates the presence of thoracic endometriosis. A diagnosis of catamenial hemoptysis is usually established based on the clinical history and the exlusion of other causes of the recurrent hemoptysis. Serial computed tomograms of the chest during and in the interval between menstruations periods is a useful confirmatory test. We report the case of a 22 year-old women who suffered from catamenial hemoptysis for 10 months and was treated successfully with a wedge resection of the lesion by video-assisted thoracoscopic surgery(VATS). There was no evidence of recurrence. In conclusion. VATS is a good choice as a for single focus for catamenial hemoptysis.