title: Oncocytic schneiderian papilloma confined to the sphenoid sinus detected by FDG-PET.
abstract: We report a 55-year-old man with oncocytic schneiderian papilloma confined to the sphenoid sinus, which was initially detected by positron emission tomography with 18F-fluorodeoxyglucose (FDG-PET) at a very early stage. Based on CT and MRI findings, we suspected that the tumor was most likely benign; however, positive uptake in FDG-PET suggested malignancy. The patient underwent endoscopic resection of the tumor, and the histopathological diagnosis turned out to be oncocytic schneiderian papilloma. FDG-PET is thought to be a powerful tool to search for malignant lesions, but the present case demonstrates the fallibility of this technique. This should be taken into consideration when interpreting FDG-PET images.
authors: Department of Otorhinolaryngology, University of Occupational and Environmental Health, Kitakyushu, Japan.
authors: Tsuyoshi
authors: T
authors: Udaka
authors: Teruo
authors: T
authors: Shiomori
authors: Gunji
authors: G
authors: Nagatani
authors: Masanori
authors: M
authors: Hisaoka
authors: Shingo
authors: S
authors: Kakeda
authors: Yukunori
authors: Y
authors: Korogi
authors: Hideaki
authors: H
authors: Suzuki
mesh_terms: D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008875:Middle Aged; D016609:Neoplasms, Second Primary / Q000000981:diagnostic imaging; D024862:Oxyphil Cells / Q000473:pathology; D010212:Papilloma / Q000000981:diagnostic imaging* / Q000473:pathology; D010255:Paranasal Sinus Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D013101:Sphenoid Sinus / Q000000981:diagnostic imaging*
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18