Subacute necrotizing encephalomyelopathy: report of a case with etiopathogenetic considerations

Leigh syndrome, a mitochondrial encephalo(myo)pathy. A review of the literature

Results of a literature survey of 173 patients with Leigh syndrome are presented, with emphasis on signs and symptoms in relation to age at onset, contributions of technical investigations to the diagnosis, pathophysiology, genetic considerations and therapeutic aspects. Based on this study we are of the opinion that it is possible to come to a diagnosis of "most probable Leigh syndrome" durante vitamin on the combination of clinical signs and symptoms, autosomal recessive mode of inheritance, association with a defect of energy metabolism, and CT or MRI abnormalities.

Brain lesions in a case of cystinosis

Cystinosis usually spares the brain or causes only deposition of cystine crystals without destructive lesions in choroid plexus or, rarely, in brain parenchyma. A case of cystinosis is presented with unusually long survival and with bilateral necrosis, numerous concretions, and extensive demyelination of internal capsule and brachium pontis. No cystine crystals could be demonstrated in these lesions although they were present in the choroid plexus. The symmetry and unique distribution of the lesions as well as their histopathology suggested a progressive process caused by the metabolic dysfunction of cystinosis. The validity of this hypothesis will be determined by future experience as renal transplants enable more patients to survive into adult life.