Pontine hypoplasia in 5p-syndrome: A key MRI finding for a diagnosis.

A 5-year-old female case of 5p-syndrome exhibited pontine hypoplasia on magnetic resonance imaging. A high-pitched cry characteristic of 5p-syndrome disappeared after 2 years. 5p-syndrome should be considered as a differential diagnosis for brainstem, especially pontine, hypoplasia. Older patients with brainstem hypoplasia should be asked about a history of a high-pitched cry in infancy so as not to miss this syndrome. Copyright 2009 Elsevier B.V. All rights reserved.