Myoclonus is a sudden and involuntary muscle spasm. It is usually a symptom of an underlying disorder and can interfere with eating, talking, and walking. The movement is involuntary and can’t be ...

Myoclonus is a sudden, random muscle jerk. It can happen alone or stem from a medical condition. Possible causes include medication side effects, damage to the nervous system, and disorders that ...

Opsoclonus-myoclonus syndrome (OMS) is a rare neuroimmunological disorder in children and adults. Symptoms include rapid multidirectional conjugate eye movements (opsoclonus), myoclonus, tremors, ...

A 63-year-old woman with a history of non-Hodgkin's lymphoma that had been treated 25 years previously, as well as a history of hypertension, hypercholesterolemia, transient ischemic attack, and acute ...