Freezing of gait caused by infarction in the unilateral genu of the corpus callosum

A 72‐year‐old man experienced a sudden onset of gait difficulty. He showed freezing of gait when he began walking with the right foot. When he followed an instruction to begin walking with the left foot and used visual cueing provided by a walking stick, an improvement in the freezing of gait was accomplished. Magnetic resonance imaging showed selective lesions in the left genu of the corpus callosum. We inferred that the freezing of gait was caused by the callosal lesions. This case implies that the white‐matter pathways are critical in the development of freezing of gait.