title: Unusual Presentation of Elastofibroma Dorsi on 18F-FDG-PET/CT: A Case Report.
abstract: A 70-year-old male patient underwent an Fluorodeoxyglucose-positron emission tomography-computed tomography for staging of a left parahilar lung neoplasm found during work-up for fatigue and asthenia. The scan demonstrated a hypermetabolic lung tumor, a hypermetabolic pleural effusion and 4 hypermetabolic bilateral soft tissue lesions of the chest wall corresponding to 4 elastofibroma dorsi. Initially, the oncologic disease was classified as stage IV because of the hypermetabolic pleural effusion. A transbronchial biopsy showed squamous cell carcinoma and the cytology of the pleural effusion revealed no malignant cells. As the other 4 hypermetabolic thoracic wall lesions were correctly diagnosed as benign despite their unusual presentation, the patient underwent surgery by left pneumonectomy and mediastinal lymphadenectomy. The lymph node involvement required adjuvant chemotherapy. Diagnostic confidence of the benignity of the hypermetabolic chest wall lesions allowed a more aggressive treatment with a better outcome after a malignant pleural effusion was excluded.
authors.affiliation: From the Department of Imaging and Medical Information Sciences, Radiology (SPM, JG); and Department of Imaging and Medical Information Sciences, Nuclear Medicine (CTV), Geneva University Hospital, Geneva, Switzerland.
authors.forename: Steve P
authors.initials: SP
authors.lastname: Martin
authors.forename: Joanna
authors.initials: J
authors.lastname: Gariani
authors.forename: Claire
authors.initials: C
authors.lastname: Tabouret Viaud
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging*; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D018218:Neoplasms, Fibrous Tissue / Q000000981:diagnostic imaging*; D016609:Neoplasms, Second Primary / Q000000981:diagnostic imaging*; D010996:Pleural Effusion / Q000000981:diagnostic imaging; D049268:Positron-Emission Tomography; D013899:Thoracic Neoplasms / Q000000981:diagnostic imaging*
chemical_list: D019788:Fluorodeoxyglucose F18