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Isolated sensory impairment of the ear auricle in a patient with cerebral infarction localized to the postcentral gyrus

Pure sensory stroke, a well‐defined clinical entity characterized by sensory symptoms, sometimes causes atypical distributions of sensory impairment. We herein report an 85‐year‐old man presenting with isolated sensory impairment of the right‐sided ear auricle due to postcentral gyrus infarction. The somatotopic representation in the human primary somatosensory cortex that corresponds to the ear has not been elucidated. This case suggests the possible cortical area for the ear.