Osteoblastoma of the Rib Mimicking Lymphomatous Involvement on 18F-FDG PET/CT Imaging.

Tang, Pan; Zhang, Yifan; Tian, Rong; Yang, Guocai · Clin Nucl Med · 2022

case_report · Level V

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Abstract

We present a case of rib osteoblastoma in a patient with NK/T cell lymphoma. Osteoblastoma was incidentally found in a 63-year-old man in the axillary segment of the fifth rib and was misdiagnosed as lymphomatous involvement on staging 18F-FDG PET/CT. The radiological features in the CT component of PET/CT were atypical. After surgery, the diagnosis of osteoblastoma was confirmed by histopathologic findings.

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