Tumor-like presentation of multiple sclerosis.

Multiple sclerosis patients may present with clinical data suggestive of cerebral tumor, however, most of the lesions do not show expansive signs in computerized tomography of brain or magnetic resonance imaging. We report in this paper, 2 patients who had shown expansive radiological signs suggestive of neoplasm. Cerebral biopsy was an important diagnostic procedure in these 2 cases which revealed the diagnosis of demyelinating disease.