A case report of an incidental finding of biparietal osteodystrophy in a patient with traumatic cerebellar haematoma

Abstract

Biparietal osteodystrophy refers to thinning of the parietal skull bone. It is a rare entity, commonly discovered incidentally on imaging of the skull for other reasons or at autopsy. Following head trauma, fracture of the thinned-out parietal bone, with or without underlying hematoma, is expected due to its reduced protective effect, especially with direct impact. In this case report, we present an elderly woman who sustained a cerebellar hematoma and frontal lobe contusion with intact parietal bone following head injury, with an incidental finding of symmetrical thinning of the parietal bones on cranial computed tomography scan.