A man in his 80s presents to the emergency department with new left leg numbness that started while he was eating breakfast an hour ago. The patient has a history of atrial fibrillation, for which he ...

When symptoms of amyotrophic lateral sclerosis (ALS), such as weakness and a loss of muscle mass, start in the limbs, doctors refer to the condition as limb onset ALS. ALS is a progressive condition ...

To accurately assess and diagnose this patient’s condition, the clinician needs to eliminate other possible causes of symptoms and rule out stroke. Unilateral leg numbness or weakness without arm ...