Rupture of the Ulnar Artery in a Case of Neurofibromatosis Type 1

Neurofibromatosis type 1 (NF1) is a genetic disorder involving an abnormality on chromosome 17, resulting in the production of the protein neurofibromin. Neurofibromin inhibits cell proliferation, and abnormalities in its encoding gene are hypothesized to trigger signals for proliferation, resulting in various lesions. Vascular fragility is a rare complication of NF1; however, ruptures of various vessels have also been reported. Here, we present a case of ulnar artery rupture treated endovascularly by puncturing the ipsilateral brachial artery, achieving excellent results.