title: Increased fluorodeoxyglucose-uptake in positron emission tomography with an endobronchial schwannoma occluding the left main stem bronchus.
abstract: A 48-year-old woman suffering from left-side back pain and a 3-year history of coughing was found to have a submucosal lesion occluding the left main bronchus by chest computed tomographic scanning and bronchoscopy. The lesion showed a high standardized uptake value of 3.9 in positron emission tomography with fluorine-18 labeled fluorodeoxyglucose scanning (FDG-PET). The tumor was resected with the posterior wall of the left main bronchus through a postrolateral thoracotomy, and a large defect in the membranous portion was reconstructed in the manner of wedge bronchoplasty, preserving the lung parenchyma. Pathological findings confirmed the diagnosis of schwannoma with no malignant cells. Schwannoma should be included in the differential diagnosis of endobronchial tumors with high standardized uptake values in FDG-PET.
authors.affiliation: Department of Chest Surgery and Pathology, Graduate School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan.
authors.forename: Ryota
authors.initials: R
authors.lastname: Nakamura
authors.forename: Shigemi
authors.initials: S
authors.lastname: Ishikawa
authors.forename: Mitsuaki
authors.initials: M
authors.lastname: Sakai
authors.forename: Yukinobu
authors.initials: Y
authors.lastname: Goto
authors.forename: Yuko
authors.initials: Y
authors.lastname: Minami
mesh_terms: D001984:Bronchial Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D019788:Fluorodeoxyglucose F18 / Q000493:pharmacokinetics*; D006801:Humans; D008875:Middle Aged; D009442:Neurilemmoma / Q000000981:diagnostic imaging* / Q000473:pathology; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals / Q000493:pharmacokinetics*
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18