title: A cause of episodic neurologic dysfunction.
mesh_terms: D003937:Diagnosis, Differential; D004569:Electroencephalography; D006327:Heart Block / Q000175:diagnosis / Q000209:etiology; D006329:Heart Conduction System / Q000528:radiation effects; D006801:Humans; D008297:Male; D009422:Nervous System Diseases / Q000175:diagnosis / Q000209:etiology*; D011832:Radiation Injuries / Q000175:diagnosis / Q000209:etiology; D011878:Radiotherapy / Q000009:adverse effects