This issue of Physician Assistant Clinics, guest edited by Laura A. Kirk, MSPAS, PA-C, is devoted to Otolaryngology. Articles in this issue include: Hyperparathyroidism: Workup and Treatment; "Sinus" Headaches: Sinusitis vs. Migraine; Sudden Sensorineural Hearing Loss; ENT Manifestations of Sarcoidosis; Pediatric Otitis Media; Evaluation and Management of Adult Neck Masses; Vestibular Migraine; Pediatric Sleep Disordered Breathing; Benign Paroxysmal Positional Vertigo (BPPV); Infectious and Inflammatory Salivary Disease; Evaluation and Management of Pediatric Neck Masses: An Otolaryngology Perspective; and Indications for Cochlear Implantation.