title: A rare case of synchronous fetal type adenocarcinoma and mucinous adenocarcinoma of the lung evaluated by 18F-FDG PET/CT.
abstract: A 71-year-old man underwent F-FDG PET/CT for metabolic characterization of pulmonary nodules. F-FDG PET/CT showed increased tracer uptake in a 3.5-cm left upper lobe mass. A second lesion (1.5 cm) characterized by poor F-FDG uptake was described in the same lobe. Based on these findings, the patient underwent upper left lobectomy. Histology demonstrated 2 synchronous tumors. The F-FDG-avid lesion was a rare moderately differentiated fetal type adenocarcinoma, whereas the second lesion with low F-FDG uptake was a moderately differentiated mucinous adenocarcinoma. In our case, F-FDG PET/CT has been useful in metabolic characterization and staging of these synchronous rare pulmonary tumors.
authors.affiliation: From the *Department of Nuclear Medicine and PET/CT Centre, Oncology Institute of Southern Switzerland, Bellinzona; and †Institute of Pathology, Locarno, Switzerland.
authors.forename: Gaetano
authors.initials: G
authors.lastname: Paone
authors.forename: Giorgio
authors.initials: G
authors.lastname: Treglia
authors.forename: Massimo
authors.initials: M
authors.lastname: Bongiovanni
authors.forename: Luca
authors.initials: L
authors.lastname: Ceriani
authors.forename: Luca
authors.initials: L
authors.lastname: Giovanella
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging*; D000077192:Adenocarcinoma of Lung; D002288:Adenocarcinoma, Mucinous / Q000000981:diagnostic imaging*; D000368:Aged; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D064847:Multimodal Imaging; D055613:Multiple Pulmonary Nodules / Q000000981:diagnostic imaging*; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18