Unusual presentation of sarcoid-like reaction on bone marrow level associated with mediastinal lymphadenopathy on 18F-FDG-PET/CT resembling an early recurrence of Hodgkin's Lymphoma
2012
Abstract 18 F-FDG-PET/CT is widely employed to evaluate lymphoma patients. False positive results are quite frequent, generally due to active phase of inflammation. We describe an unusual PET/CT presentation of a sarcoid-like reaction (SLR) in a patient monitored for Hodgkin Lymphoma characterized by an intense uptake in lymph nodes and multiple bone foci in a PET/CT study. The final diagnosis was obtained by biopsy. This study draws attention to the fact that multifocal bone marrow uptakes due to a sarcoideal reaction may be a possible cause of false positive results in 18 F-FDG-PET/CT studies in oncology patients.
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