Katsumi Hayakawa MD, Presenter: Nothing to Disclose

Toyoko Kanda MD, Abstract Co-Author: Nothing to Disclose

Yuriko Yamori MD, Abstract Co-Author: Nothing to Disclose

Rolandic type cerebral palsy is the distinct type of cerebral palsy among the term children suffering hypoxic-ischmeic encephalopathy. This disease is usually diagnosed by the basis of MR imaging features including basal ganglia injury with peri-rolandic cortical involvement. The purpose of the exhibit is to show the MR features of this disease.

MR features included basal ganglia injury with perirolandic injury(mild form) and with the additional hippocampal injury (severe form). In mild form, the other brain structures are normal, whereas in severe form generalized severe atrophic changes are observed as ventricular dilatation, brain stem atrophy, thin corpus callosum and cerebral atrophy. Moreover,the clinical outcome of children in severe form is more severe than those in mild form.

MR imaging study showed two patterns of the brain injuries. The severe form exhibited more generalized brain injury and this form of cerbral palsy is well correlated with the poor outcome such as spastic tetraplegia and mixed type of cerebral palsy comprising spastic and athetotic cerebral palsy. The knowledge of the characteristic MR features of Rolandic cerebral palsy is clitical for understanding the neonatal hypoxic-ischemic encephalopathy and their clinical outcome.

Hayakawa, K, Kanda, T, Yamori, Y, MR Features of Rolandic Type Cerebral Palsy as a Distinct Pattern of Hypoxic-Ischemic Injury in the Full Term Neonate.  Radiological Society of North America 2006 Scientific Assembly and Annual Meeting, November 26 - December 1, 2006 ,Chicago IL. http://archive.rsna.org/2006/4437249.html