Resumen

YACHI-FIERRO, Yanet et al. Pure motor monoparesis as a manifestation of cardioembolic cerebral infarction: Case report. Rev Neuropsiquiatr [online]. 2017, vol.80, n.1, pp.80-84. ISSN 0034-8597.  http://dx.doi.org/10.20453/rnp.v80i1.3063.

The pure motor monoparesis (PMM) is an isolated motor deficit in an upper or lower extremity usually related to a cerebro-vascular disease. It is a rare condition that can be easily confounded with other pathologies, reason for which should be carefully differentiated through clinical assessment and neuroimaging studies. We report the case of a 56 year-old woman who suddenly presented pure left brachial monoparesis as a manifestation of a right middle cerebral artery stroke. Brain MRI showed a hyperintensity in FLAIR and diffusion protocols, and a subintensity in the apparent diffusion coefficient (ADC) in the territory of M4 segment of the right middle cerebral artery, corresponding to the prerolandic area in the somatotopical distribution of the upper limb. Different etiologies of an management strategies for this condition are discussed. The diagnosis of PMM due to ischemic stroke should be considered in patients presenting an acute motor deficit in one extremity, braquial or crural, and with history of vascular risk factors.

Palabras clave : Pure motor monoparesis; monoparesis; stroke.

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