[A case of ruptured left subclavian artery associated with von recklinghausen's disease]

Emergency operation was performed on a 38-year-old woman of von Recklinghausen's disease, who fell in shock due to massive hemorrhage in the left thoracic cavity following rupture of the left subclavian artery. The vascular wall was so fragile that hemostasis was difficult. She survived the operation. Vascular complications in von Recklinghausen disease were discussed.