Andrew Tan
John Hunter Hospital, Australia
Title: Inverted papilloma of the external auditory canal with malignant transformation
Biography
Biography: Andrew Tan
Abstract
Inverted papillomas commonly occur in paranasal sinuses and is the second most common benign tumour of the sinonasal tract. There is an association with squamous cell carcinoma with a reported prevalence of between 3.4-9.7%. Inverted papillomas are suspected to have a viral aetiology with human papillomavirus being demonstrated in polymerase chain reactions (PCR). The serotypes 16 and 18 have been associated with malignant transformation histologically. We present the case of an 80 year old man who had suffered with chronic unilateral otorrhoea for 20 years and presented to an otolaryngology clinic. A biopsy was taken demonstrating an atypical papilloma favouring an inverted papilloma. He proceeded to surgical resection of the lesion confi rming an inverted papilloma with malignant transformation to a squamous cell carcinoma. He proceeded to be discussed at the Head and Neck Multidisciplinary team meeting for treatmnent and elected to undergo radiotherapy. To date, there have been no reports on inverted papilloma of the external auditory canal. We discuss this patients case along with a literature review.