Objective: To present a rare case of inverted papilloma of the middle ear in a 77-year old man presenting with an external auditory canal polyp of the right ear. Methods:: Design: Case Report. Setting: Tertiary Private Hospital. Patient: One. Results: A 77-year-old man presenting with external auditory canal mass underwent tympanoplasty with canal wall down mastoidectomy. Histopathologic examination revealed inverted papilloma. Conclusion With only 30 cases reported in the literature, inverted papilloma of the middle ear is a rare disease entity that may mimic other benign conditions such as cholesteatoma. It requires further investigation to devise a rational approach to diagnosis and management. Regular post- operative monitoring is essential due to high recurrence and malignant transformation rate while post-operative radiotherapy remains controversial and requires further investigation
Papilloma, Inverted, Cholesteatoma ; Ear, Middle

Inverted papilloma (Schneiderian-type papilloma) involving the middle ear is extremely rare. Most of cases originate from the mucosa of the lateral nasal wall, extending into the paranasal sinuses and orbits. Inverted papilloma involving the middle ear has a high recurrence rate and a possibility of malignant change. We experienced a case of inverted papilloma of the middle ear secondary to congenital cholesteatoma surgery. A nine-year old male who was diagnosed with congenital cholesteatoma was treated with intact canal wall tympanomastoidectomy. Nine months later, he underwent a second look operation. In the second surgery, a 3 mm round pinkish mass which was located at the tympanic orifice of Eustachian tube was identified as inverted papilloma. There was no recurrence of cholesteatoma or inverted papilloma four months after the 2nd operation.
Cholesteatoma ; Ear, Middle ; Eustachian Tube ; Humans ; Male ; Mucous Membrane ; Orbit ; Papilloma, Inverted ; Paranasal Sinuses ; Recurrence