Journal of Clinical Neurology  2007;3(2):112-115

doi:10.3988/jcn.2007.3.2.112

Pure Sensory Deficit at the T4 Sensory Level as an Isolated Manifestation of Lateral Medullary Infarction.

In Uk SONG 1 ; Joong Seok KIM ; Dong Geun LEE ; Jae Young AN ; Seon Young RYU ; Sang Bong LEE ; Yeong In KIM ; Kwang Soo LEE

Affiliations

+expand

Keywords

Somatotopic topography; Lateral medullary infarction

Country

Republic of Korea

Language

English

Abstract

In rare cases restricted sensory deficits along the somatotopic topography of the spinothalamic tract can develop from a lateral medullary infarction. To our knowledge, isolated dermatomal sensory deficit as a single manifestation of a lateral medullary infarction has not been reported previously. A 58-year-old man presenting with sudden left-sided paresthesia complained of sensory deficit of pain and temperature below the left T4 sensory level without other neurologic deficits. Diffuse- and T2-weighted magnetic resonance imaging (MRI) of the brain showed high signal intensities in the right lower medulla oblongata, whereas thoracic-spine MRI and somatosensory evoked potentials produced normal findings.