[Neurologic involvement in malignant mid-face granuloma].

We report 4 cases with neurological disorders due to lethal centrofacial granulomas of unknown origin, and we review the relevant literature. This puzzling disease is characterized by a relentless ulceration of the nose progressing toward the base of the skull, and frequently involving the cranial nerves, the meninges and later the central nervous system. The main clinical point in such situations is to ascertain that no microorganism, no cancer, no specific disease is responsible for the centrofacial lesions, since the microscopic findings may be non-specific. When the entire work-up to exclude all differential diagnoses is completed, the clinician has to deal with lethal centrofacial granuloma. This seems to be a heterogeneous disease, in most of the cases close to malignant T lymphomas. Management is based on radiotherapy, chemotherapy and renutrition with treatment of frequent infectious complications. The prognosis is poor.