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CC BY-NC-ND 4.0 · World J Nucl Med 2020; 19(03): 288-290
DOI: 10.4103/wjnm.WJNM_82_19
Case Report

Benign uptake of 18F-fluorodeoxyglucose in the gallbladder on positron emission tomography-computed tomography

Riffat Hussain
Department of Radiology, PET-CT, Jinnah Postgraduate Medical Center, Karachi, Pakistan
,
Sadaf Nausheen
Department of Radiology, PET-CT, Jinnah Postgraduate Medical Center, Karachi, Pakistan
,
Naveed Ahmed
Department of Radiology, PET-CT, Jinnah Postgraduate Medical Center, Karachi, Pakistan
,
Tariq Mahmood
Department of Radiology, PET-CT, Jinnah Postgraduate Medical Center, Karachi, Pakistan
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Abstract

18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) has been established as the indisputable tool in the oncological arena to diagnose, stage/restage, and report treatment response for various tumor malignancies. FDG uptake mostly identifies pathological uptake in oncological scans with the tracer on PET studies; however, benign uptakes are also commonly seen. Reported here is a benign case of increased uptake of the FDG on a PET with computed tomography scan in the gallbladder (GB) of a patient being screened for a known carcinoma breast. The benign accumulation of the tracer is seen in the GB to various degrees and this phenomenon may occur as a result of FDG excretion into the bile. When interpreting clinical PET images, recognition of this phenomenon is important to avoid misdiagnosing physiological GB FDG uptake as pathological so as to avoid misinterpretations of the findings.

Keywords

Benign uptake - 18F-fluorodeoxyglucose - gallbladder - positron emission tomography-computed tomography

Financial support and sponsorship

Nil.




Publication History

Received: 08 November 2019

Accepted: 14 November 2019

Article published online:
19 April 2022

© 2020. 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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