CASE OF RARE CYSTIC MASS IN EXTERNAL AUDITORY CANAL!!

Abstract

58 years old male came to Santosh hospital with reduced hearing in left ear from last 2 years, most common to conversational sounds. Patient did not give history of giddiness, facial asymmetry, pain, discharge in both ears. Patient is known case of Hypertension. Examination revealed normal looking pinna with soft erythematous cyst present in left external auditory canal (EAC) which covred the tympanic membrane (TM). Examination of the right ear was within normal limits. Pure Tone Audiogram (PTA) showed Left conductive hearing loss. CT scan temporal bone showed left lobular lesion with a central hyper density arising from the anterior wall of the left EAC with medial extension . Surgical exploration revealed large cystic mass from External auditory canal extending towards tympanic membrane. Another cyst was found and excised along the tympanic membrane. Immunohistochemical staining showed paraganglioma. The purpose of the report is to highlight a rare case of head and neck paraganglioma of EAC. Aim is to provide physicians knowledge to make a clinical diagnosis and appropriate treatment.