An unusual cause of stroke

A woman in her 60s presented with acute onset numbness and weakness of the left arm and leg for three days on a background of fatigue and weight loss without headache over six months. She took ramipril for hypertensionbutwasnormallywell. She was admittedunder the care of the acute stroke team, and magnetic resonance imaging of the brain confirmed right middle cerebral artery territory infarction. Initial investigations also revealed biochemical evidence of inflammation (table 1). Neither atrial fibrillation nor carotid artery stenosis (on Doppler ultrasound) were identified as causes for her stroke.