[Burkitt's lymphoma]

The paper presents two patients with malignant lymphoma of Burkitt's type. Initial localisation of the disease on the mandible, early dissemination in the central nervous system and bone marrow infiltration with appearance of characteristic Burkitt's type blast cells enabled us to bring the diagnosis. Rapid fatal evolution of the illness in spite of the applied therapy point of the diagnosis of this rare type of malignant lymphoma.