Successful treatment of catamenial hemoptysis by single-incision thoracoscopic left S9 + 10 segmentectomy using indocyanine green injection-assisted targeting.

Catamenial hemoptysis is a rare condition. A 28-year-old woman presented with a 1-year history of repetitive hemoptysis occurring on the first day of her menstrual period. Chest computed tomography revealed catamenial hemoptysis during her menstrual period. The patient underwent single-incision thoracoscopic left S9 + 10 segmentectomy using indocyanine green injection-assisted targeting. The endometriosis lesions would not be enhanced by perfusion defects during ICG injection due to the lung contusion. Surgical resection with accurate localization of catamenial hemoptysis was a fundamental treatment method. The localization of lesions using indocyanine green effectively enabled a minimally invasive surgery.