A 64-year-old patient with herpetic keratouveitis was hospitalized because of fatigue, fever, headache and confusion. Three days before admittance keratouveitis was diagnosed. He reported a recent onset of aversion against meat consumption and weight loss of 11 kg over the last 4 months. Clinical investigation revealed a slightly confused patient with conjunctivitis and reduced vision of the left eye. Laboratory tests showed anemia, hyponatremia, and increased carcinoembryonic antigen (CEA). In the cerebrospinal fluid examination protein concentration was increased, glucose concentration was decreased. CT-scan of the brain revealed multiple, hyperintense, circular lesions. Biopsy showed lymphoplasmacellular infiltration with increased number of glial and oligodendroglial cells with central necrosis. Despite therapy with tuberculostatic and antiviral drugs and corticosteroids the condition of the patient progressively deteriorated. The patient died 42 days after admission. Autopsy revealed a high grade B-cell non-Hodgkin's lymphoma of the jejunum. Septic shock was the cause of death with the lymphoma of the jejunum as a possible nidus of infection. The multiple brain lesions with central necrosis were probably caused by thromboembolization or by a previous viral meningoencephalitis.