Case Presentation: A 70-year-old man with a history of stage III melanoma, previously treated with surgical resection and pembrolizumab, presented with diplopia and ptosis. Laboratory results showed significantly elevated high-sensitivity troponins and creatine kinase-MB. Initial electrocardiogram revealed complete atrioventricular block without ST-segment changes, necessitating the placement of a transvenous pacemaker. Echocardiogram showed an ejection fraction [...]

Case Presentation: 54-year-old male with history of stroke, seizures, neurogenic bladder, and spine surgery presented with increasing left sided weakness, trouble swallowing, unintentional 67-pound weight loss, headaches and double vision. On exam, he had bilateral upper extremity weakness, partial ptosis, diplopia, right eye ocular palsy, right eye gaze restriction in supraduction and abduction. Complete blood [...]