In the reported case 74 malignant metastases were found in the brain. The primary tumour was a bronchogenic carcinoma. The clinical symptoms were scant and were restricted mainly to those produced by involvement of the pons without evidence of intracranial hypertension. In the discussion the only relative value of laboratory investigations is stressed, including computerized tomography. The case deserves publication in view of rare occurrence of such oligosymptomatic course despite a high number of metastases.