Sinonasal inverted papilloma involving the middle ear and the mastoid.

1 MD by the Federal University of Ceará (Resident Physician at the ENT Service of the Walter Cantídio University Hospital of the Medical School of the Federal University of Ceará). 2 PhD in Medicine by the Medical School of the University of São Paulo (Adjunct Professor in the ENT Course of the Medical School of the Federal University of Ceará). 3 PhD in Medicine by the Federal University of Ceará (Coordinator of the Medical Residency Program and Assistant Professor of the ENT Service of the Walter Cantídio University Hospital of the Medical School of the Federal University of Ceará). 4 Specialist in Otorhinolaryngology by the Brazilian ENT-HNS Association (Auxiliary Professor and Head of the ENT Service at the Walter Cantídio University Hospital of the Medical School of the Federal University of Ceará). 5 Specialist in Otorhinolaryngology by the Brazilian ENT-HNS Association (Assistant Physician in the ENT Service at the Walter Cantídio University Hospital of the Medical School of the Federal University of Ceará). Send correspondence to: Jônatas Lopes Barbosa. Rua Marcondes Pereira, no 987, Dionísio Torres. Fortaleza CE. CEP: 60130-060. Paper submitted to the BJORL-SGP (Publishing Management System Brazilian Journal of Otorhinolaryngology) on October 17, 2011; and accepted on July 1, 2012. cod. 8846. .org