Characterization and Treatment of Unilateral Facial Muscle Spasm in Linear Scleroderma: A Case Report
Background: Linear scleroderma has been associated with muscle spasms ipsilateral to skin lesions. Typically, spasms are generated by trigeminal innervated muscles, leading to hemi-masticatory spasm (HMS).
Case Report: We report a case of linear scleroderma associated with spasm of muscles innervated not only by the trigeminal, but also by the facial nerve.
Discussion: We review the patient’s successful treatment with incobotulinumtoxinA, a formulation of botulinum toxin that has not been reported for use in this condition.