Spontaneous massive hemothorax in a patient with neurofibromatosis type 1 with successful transarterial embolization.

Vascular involvement in neurofibromatosis type 1 is rare but has the potential to be fatal. We report a case of a patient with spontaneous rupture of a left intercostal artery aneurysm, which presented as a massive left hemothorax and was successfully treated by transarterial coil embolization.