Two Cases of Cortical Infarction Presenting as Pure Motor ?Mononplegia(PMM)

J Korean Neurol Assoc > Volume 12(2); 1994 > Article

Journal of the Korean Neurological Association 1994;12(2): 323-328.

순수 운동성 단마비(Pure motor monoplegia)로 발현된 뇌 피질 경색 ?2례

이숭현, 김순관,최영철,이명식,최일생

연세대학교 신경과.

Two Cases of Cortical Infarction Presenting as Pure Motor ?Mononplegia(PMM)

SH Lee, M.D., SK Kim, M.D., YC Choi, M.D., MS Lee, M.D., LS Choi, M.D.

Department of Neurology, Collge of Medicine, Yonsei University

Abstract

Pure motor monoplegia (PMM), characterized by motor involvement limited to one limb without sensory deficit, is a rare symptom in cerebrovascular diseases, brain tumor and brain abscess. Recently, we experienced two patients with small cortical infarction who presented with PMM : foot drop and distal weakness of upper extremity, respectively. In these cases, the lesions were not seen definitely by CT scan, but were detected by magnetic resonance imaging (MRI), which were restricted to the primary motor area in the opposite hemisphere. These cases illustrated that, though rare, infarction of cerebral cortex may cause pure motor monoparesis. We recommand MRI rather than CT scan in the evaluation of patients with sudden onset monoparesis.