INFARCTION OF THE UNILATERAL POSTERIOR HORN AND LATERAL COLUMN OF THESPINAL-CORD WITH SPARING OF POSTERIOR COLUMNS - DEMONSTRATION BY MRI

Infarction of the spinal cord, particularly in the distribution of the posterior spinal arteries, is rare. Twenty seven cases of posterior s pinal artery syndrome have been reported. In all cases, the posterior columns were affected, and in all but two, the lesions were bilateral. Here a 49-year-old woman is reported, who was affected with lumbar co rd infarction in the distribution of the posterior spinal arteries, di agnosed by MRI and clinical presentation. This case is of special inte rest because of sparing of the posterior columns and the unilateral na ture of the lesion, even though the infarction occurred in the distrib ution of the posterior spinal arteries.