Fatal haemorrhage due to extensive fragility of medium- and large-sized arteries and veins in a young patient with neurofibromatosis 1

Background ibromatosis type 1 (NF1) is one of the most frequently inherited diseases. Vascular manifestations have been reported, mostly concerning stenosis of the renal artery or spontaneous rupture of single arteries. Also, venous aneurysms have been reported. s sent clinical and pathological findings of a young patient with NF1 with lethal bleeding due to spontaneous rupture of a lumbal and renal artery. s ragility of several arteries as well as veins in the abdominal and pelvic arterial and venous system resulted in a destroyed vessel structure caused by invading neurogen fibres. sions e cases, NF1 is associated with a severe systemic vasculopathy concerning the arterial and venous vascular system.