[Neurofibromatosis and multiple nonossifying bone fibromas].

Three patients with a combination of neurofibromatosis and multiple non-ossifying fibromas are presented. All patients possessed multiple osteolytic lesions with sclerotic margins, resembling non-ossifying fibromas. Two patients showed similar lesions in additional localizations. In two patients, non-ossifying fibroma was histologically verified. The simultaneous occurrence of neurofibromatosis and multiple non-ossifying fibromas can possibly be put down to a generalized mesodermal dysplasia. However, the definite explanation is unknown.