[Cerebral lymphomatoid granulomatosis. A case report].

We present the case of a 57-year-old patient who was admitted with fever and disorientation. The cerebrospinal fluid showed a mild pleocytosis and increased protein content. MR imaging revealed multiple lesions, particularly in the subcortical white matter, with spot like central contrast enhancement. The diagnosis of lymphomatoid granulomatosis was finally made through open lung biopsy. Despite treatment with rituximab and, in the later course of the disease, additionally with cyclophosphamide, the patient died 3 months after the diagnosis was made.