[Acute lymphoblastic leukemia with cerebral lesions observed by axial transverse computerized tomography].

During the evolution of a treated A.L.L. (without C.N.S. radiotherapy) in a young girl, the development of leukemic meningitis and a Lennox-Gastaut syndrome were observed. Abnormal intra-cerebral lesions are observed by computerized transverse axial tomography. These lesions are presumably secondary to lymphoblastic infiltration. There were no lymphoblasts in the C.S.F. This new method of exploration of the central nervous system which is strictly atraumatic, is considered as a valuable adjunct to the lumbar puncture in the control of the neurological complications of acute leukemia.