Cholesteatoma Masquerading as Cerumen

Abstract

Cerumen is composed of glandular secretions and desquamated epithelial cells. It protects and lubricates the external auditory canal. Impacted cerumen causes canal occlusion and pressure over the tympanic membrane, causing ear discomfort, conductive hearing loss, itching, etc. Up to 6% of the general population are affected with impacted cerumen, which includes 10% of children, more than 30% of the elderly and people with cognitive impairment. Persistent symptoms despite resolution of impaction and patient repeatedly should raise suspicion of alternative diagnosis and prompt for further evaluation. A 20-year-old female patient came with complaints of decreased hearing and ear discharge. On otoscopic examination of left ear, impacted cerumen was seen in the attic region. On removal of wax with the aid of oto-endoscopy, attic region was found to be filled with cholesteatoma debris. On pure tone audiometry, patient had mild conductive hearing loss of 30 db and computed tomography of left temporal bone revealed ill-defined soft tissue density in the middle ear (epitympanum) with erosion of head of malleus and short process of incus. Blunting of scutum was also seen. Attic reconstruction and type III tympanoplasty was performed. On histopathological examination, the section showed keratin flakes with bacterial colonies which were consistent with cholesteatoma. In conclusion, any case of impacted cerumen should not be ignored by otorhinolaryngologist. Further evaluation with thorough examination under otomicroscope/otoendoscope has to be done which can lead to different diagnosis and treatment plan.