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Open Access Highly Accessed Case report

Acute infarct of the corpus callosum presenting as alien hand syndrome: evidence of diffusion weighted imaging and magnetic resonance angiography

Jun Liang Yuan1, Shuang Kun Wang2, Xiao Juan Guo2 and Wen Li Hu1*

Author Affiliations

1 Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, No. 8 South Gongti Road, Beijing 100020, China

2 Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University, No. 8 South Gongti Road, Beijing 100020, China

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BMC Neurology 2011, 11:142  doi:10.1186/1471-2377-11-142

Published: 9 November 2011

Abstract

Background

Infarcts of the corpus callosum are rare and have not been well documented previously. As for a variety of signs and symptoms presented, alien hand syndrome (AHS) can be easily overlooked.

Case presentation

In this report, we present a patient with a mixed types of AHS coexistence secondary to the corpus callosum infarction, including a motor type of AHS by intermanual conflict (callosal type AHS) and a sensory type of AHS by alien hand and left hemianesthesia (posterior AHS).

Conclusions

Our case may contribute to the early recognition of AHS and to explore the abnormal neural mechanism of AHS. To our knowledge, rare reports have ever documented such mixed AHS coexisting secondary to the callosal lesion, based on advanced neuroimaging methods as in our case.