A Case of Dyke-Davidoff-Masson Syndrome with Hypoplasia of the Kidney: An Unusual Association.

Dyke-Davidoff-Masson syndrome (DDMS) is a rare neuro-osteal syndrome of childhood and a constellation of cerebral hemiatrophy, facial asymmetry, seizures, osseous changes, and hemiplegia. It commonly presents with seizures and hemiplegia. The involvement of the kidney in DDMS is not known in the available literature, except in a case report that described ectopic kidney in DDMS. We present the case of a 15-year-old boy who presented with recurrent seizures, right facial palsy, left hemiparesis, and advanced renal failure. The neuroimaging revealed diffuse right cerebral atrophy, dilatation of the ipsilateral lateral ventricle, and ipsilateral thickening of the calvaria. The nephrological evaluation suggested the diagnosis of chronic kidney disease stage VD, probably secondary to congenital hypoplasia of the kidney.