Hemifacial Spasm

**Definition:** Recurrent clonic contraction of facial muscles, restricted to one side. It may occur as a manifestation of compressive lesions involving the seventh cranial nerve (FACIAL NERVE DISEASES), during recovery from BELL PALSY, or in association with other disorders. (From Adams et al., Principles of Neurology, 6th ed, p1378)

**Tree numbers:** - C07.465.364 - C10.597.613.750.400 - C23.888.592.608.750.400

**Synonyms:** - Facial Spasm, Unilateral - Spasm, Hemifacial