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CC BY-NC-ND 4.0 · World J Nucl Med 2017; 16(02): 166-168
DOI: 10.4103/1450-1147.203070
Case report

False negative 18F-fluorodeoxyglucose positron emission tomography/computed tomography in primary b-cell lymphoma of the bone

Matthieu Pelletier-Galarneau
Division of Nuclear Medicine, University of Ottawa, Ottawa, Ontario, Canada
,
Patrick Martineau
Division of Nuclear Medicine, University of Ottawa, Ottawa, Ontario, Canada
,
Raymond Lambert
1   Department of Nuclear Medicine, Hopital Ste-Justine, Quebec, Canada
,
Sophie Turpin
1   Department of Nuclear Medicine, Hopital Ste-Justine, Quebec, Canada
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We present a case of a 15-year-old male with primary bone lymphoma who was initially referred for suspicion of chronic osteomyelitis of the mandible. A bone scan and gallium scan demonstrated congruent uptake in the mandible, suggestive of chronic osteomyelitis. A biopsy subsequently showed B-cell lymphoma of the bone with low Ki-67. A fluorodeoxyglucose positron emission tomography (FDG-PET) scan performed before therapy for staging revealed no increased uptake in the mandible. This case shows an atypical presentation of a rare disorder and is presented to emphasize the importance of baseline FDG-PET.

Keywords

Fluorodeoxyglucose positron emission tomography/computed tomography - Ki-67 - primary bone lymphoma


Publication History

Article published online:
18 May 2022

© 2017. Sociedade Brasileira de Neurocirurgia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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