title: The characteristics of FDG PET/CT imaging in pulmonary Langerhans cell sarcoma.
abstract: A 53-year-old man, who was a heavy smoker, presented with recent severe cough. Radiography demonstrated a large pulmonary mass in the right upper lung. FDG PET/CT demonstrated heterogeneous high-grade activity in the pulmonary mass located in the right upper lung (standardized uptake value of 20), with central necrosis, bilateral upper mediastinal lymphadenopathy, right supraclavicular lymphadenopathy, direct left sternal manubrium invasion, and distal bilateral peripheral lung metastasis. Histology revealed significant malignant cytologic features and CD1a- and S-100-positive cells by immunohistochemistry staining, typical for Langerhans cell sarcoma.
authors.affiliation: Department of Nuclear Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
authors.forename: Yu-Wen
authors.initials: YW
authors.lastname: Chen
authors.forename: Chin-Chuan
authors.initials: CC
authors.lastname: Chang
authors.forename: Po-Nian
authors.initials: PN
authors.lastname: Hou
authors.forename: Sin-Lin
authors.initials: SL
authors.lastname: Yin
authors.forename: Yung-Chang
authors.initials: YC
authors.lastname: Lai
authors.forename: Ming-Feng
authors.initials: MF
authors.lastname: Hou
mesh_terms: D019788:Fluorodeoxyglucose F18; D006801:Humans; D054752:Langerhans Cell Sarcoma / Q000000981:diagnostic imaging* / Q000473:pathology; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed; D051598:Whole Body Imaging
chemical_list: D019788:Fluorodeoxyglucose F18