title: Cricothyroid muscle paralysis: its recognition and diagnosis.
abstract: Cricothyroid muscle paralysis is often missed as the symptoms are not dramatic and the laryngeal observations, on conventional indirect mirror examination, are inconclusive. The anatomy and physiology of the superior laryngeal nerve (SLN) and cricothyroid muscle are described. Three case reports are presented to illustrate our diagnostic techniques. Videofibrolaryngoscopy and electromyography are found to be invaluable tools for the diagnosis of this condition. The importance in diagnosing this entity is discussed.
authors.affiliation: Department of Otolaryngology and Clinical Neurophysiology, Bristol Royal Infirmary.
authors.forename: K
authors.initials: K
authors.lastname: Bevan
authors.forename: M V
authors.initials: MV
authors.lastname: Griffiths
authors.forename: M H
authors.initials: MH
authors.lastname: Morgan
mesh_terms: D000328:Adult; D004576:Electromyography; D005260:Female; D006801:Humans; D007821:Laryngeal Muscles / Q000033:anatomy & histology / Q000502:physiology / Q000503:physiopathology; D007828:Laryngoscopy; D008297:Male; D008875:Middle Aged; D014826:Vocal Cord Paralysis / Q000175:diagnosis* / Q000503:physiopathology; D014827:Vocal Cords / Q000503:physiopathology