[Multiple malignant schwannoma treated with a multidisciplinary therapy--a case report].

A 32-year-old man, complaining of an abdominal mass, was admitted to hospital where, on undergoing examination, the mass, which had spread widely through the abdominal cavity and the retroperitoneal space, was diagnosed as a malignant schwannoma with a liver metastasis. Thus, a multidisciplinary treatment was initiated and a remission was achieved. Later, however, he developed a multiple, local recurrence and died forty months after onset of his clinical symptoms. Since the prognosis of patients with a malignant schwannoma that do not undergo radical surgery is extremely poor, the authors emphasize the necessity of research for an effective adjuvant therapy.