[A rare case of rapidly progressing primary diffuse meningeal sarcomatosis of the brain and spinal cord].

Currently the differential diagnosis of anaplastic meningiomas often is quite complex. An interpretation of the data of radiological studies does not allow the exclusion of diseases with similar clinical course and character of a lesion, such as primary lymphoma and tuberculosis of the central nervous system, neurosarcoidosis and others. The article presents a clinical case, representing a rare and difficult to diagnose variant of anaplastic meningioma with extremely aggressive nature of the current and widespread involvement of the brain and spinal cord.