J Korean Soc Radiol.  2011 Nov;65(5):473-477.

Oncocytic Schneiderian Papilloma Presenting as an Intensely Hypermetabolic Lesion of the Maxillary Sinus on 18F-Fluorodeoxyglucose Positron Emission Tomography/CT: A Case Report and Literature Review

Affiliations
  • 1Department of Radiology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea. sklee@dsmc.or.kr
  • 2Department of Pathology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.

Abstract

A 54-year-old man presented with an incidentally identified intensely hypermetabolic lesion (SUVmax: 22.2 g/mL) in the left maxillary sinus on 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) performed for cancer screening. The mass was well circumscribed and showed solid enhancement on contrast-enhanced CT. Histological examination of the mass was consistent with oncocytic schneiderian papilloma. It is of prime importance to recognize that a sinonasal lesion with intense hypermetabolism on 18F-FDG PET/CT does not necessarily signify malignancy. Oncocytic schneiderian papilloma should be included in the differential diagnosis of an intensely hypermetabolic and solidly enhancing mass of the nasal cavities or paranasal sinuses.

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