ABSTRACT
Primary cerebral lymphoma is a rare tumour usually seen in immunodepressed patients. The clinical manifestations depend on its localization. Imaging using both magnetic resonance imaging and CT scan leads to the diagnosis that is confirmed bythe histolopathologic exam. Several therapeutic strategies are adopted in this type of tumour associsating neurosurgery, chemotherapy and radiotherapy. A 29 -year- old immunocompetent patient presented to our service with a 2-month history of headaches, vomiting and decrease in the visual acuity. Clinical examination and radiological findings revealed the presence of a cerebral lymphoma localized in the thalamus. Primary cerebral lymphoma is a rare tumour but whatever is the therapeutic strategy used, the evolution is normally rapid and positive