{Reference Type}: Case Reports {Title}: Unilateral upper cervical cord infarction in Opalski's syndrome caused by spontaneous vertebral artery dissection. {Author}: Yang Y;Wang Q;Zhang S;Li J;Tang Y; {Journal}: Clin Med (Lond) {Volume}: 23 {Issue}: 4 {Year}: 2023 Jul {Factor}: 5.41 {DOI}: 10.7861/clinmed.2023-0228 {Abstract}: We report a case of a man with concurrent unilateral upper cervical cord infarction in Opalski's syndrome due to spontaneous vertebral artery dissection.