title: Corticosteroid Responsive Sarcoidosis with Multisystemic Involvement Years after Initial Diagnosis: A Lymphoma Mimicker on 18-FDG PET/CT.
abstract: Sarcoidosis is a chronic multisystemic inflammatory disease characterized by noncaseating epithelioid cell granulomas. 18-Fluorodeoxyglucose positron-emission tomography/computer tomography (FDG-PET/CT) is increasingly used in routine clinical practice to assess active sarcoidosis because it can detect active inflammatory granulomatous disease. However, active sarcoidosis lesions are observed to be hypermetabolic on FDG-PET/CT much like malignancies, which may lead to misinterpretation on imaging. In this case report, we present a rare case of sarcoidosis with multisystem involvement including lung, lymph nodes, bone, pleura, and soft tissue that mimicked lymphoma on FDG-PET/CT and responded to corticosteroid treatment.
authors: Department of Radiology, Abant İzzet Baysal University, Training and Research Hospital, Bolu, Turkey.
authors: Turker
authors: T
authors: Acar
authors: Department of Radiology, School of Medicine, Ege University, Izmir, Turkey.
authors: Recep
authors: R
authors: Savas
authors: Department of Nuclear Medicine, Ege Rad Diagnostic Imaging Center, Izmir, Turkey.
authors: Kenan
authors: K
authors: Kocacelebi
authors: Department of Chest Diseases, School of Medicine, Dokuz Eylül University, Izmir, Turkey.
authors: Eyup Sabri
authors: ES
authors: Ucan
keywords: Computed tomography; lymphoma; positron-emission tomography; sarcoidosis