돌발성 난청, 고환염, 전정신경염이 동반된 유행성 이하선염 1예

Mumps is caused by paramyxovirus and common cause of nonsuppurative acute sialoadenitis. Paramyxovirus is spread by saliva, nasal droplet and urinary secretion. Patients usually experience low-grade fever, myalgia, arthralgia, headache and painful swelling on bilateral parotid gland. There are many mumps complications including sensorineural hearing loss (SNHL), pancreatitis, encephalitis, orchitis, prostatitis, oophoritis, nephritis and vestibular neuronitis. Orchitis and encephalitis are common complications of mumps, while SNHL appear less frequent in adults. This research focuses on the mumps patient who had experienced unilateral SNHL and orchitis before sialoadenitis. If patients have symptoms of mumps complication without sialoadenitis, clinician should doubt possibility of mumps and perform serologic tests. (J Clinical Otolaryngol 2014;25:255-260)