Cerebral hemorrhage restricted to the corpus callosum.

Abstract

We report a case of an 87-yr-old woman with hemorrhage restricted to the corpus callosum. After conservative treatment at an emergency hospital, she was admitted to our hospital presenting with bilateral lower limb weakness (paraparesis) and abnormal behavior in her left hand, such as pulling at dishes while eating and purposeless "floating" of the hand while walking. We believed these behaviors to represent disconnection syndrome. Six weeks after onset, her abnormal behavior while eating disappeared. The incomplete paraparesis also improved, and she regained the ability to walk, albeit with a T cane. These findings are compatible with previously reported cases. In cases of a corpus callosum lesion, careful observation from the outset is indispensable to avoid misdiagnosis.