Opalski Syndrome, a variant of Wallenberg Syndrome: Case report and literature review

Abstract

A clinical case of the Opalski variant of the lateral medullary syndrome (Wallenberg's syndrome) is presented and a literature review about the symptoms of this clinical picture is done, as well as the possible reasons explaining this modification in the clinical expression. The Opalski variant was described in 1948, eighty-nine years after the original description of the syndrome by Adolf Wallenberg, its main feature is the presence of hemiparesis or hemiplegia of the ipsilateral side of the injury in the medulla oblongata. In most cases the etiology is vascular when the postero-inferior cerebellar artery is occluded or there is an obstruction of the ostium of penetrating vessels originating in the artery. There are no studies that accurately report the worldwide incidence of this clinical variant, however, its presentation is not uncommon. The most interesting discovery of each case is that semiological findings are a good example of the profound organization of the nervous system.