Gallbladder activity on sodium fluoride positron emission tomography/computed tomography bone scan

Ismet Sarikaya 1, Abdelhamid H Elgazzar 1, Mahmoud A Alfeeli 2, Ali Sarikaya 3

Affiliations

01 July 2018

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doi: 10.4103/wjnm.WJNM_45_17

Abstract

We incidentally identified gallbladder activity on 18F sodium fluoride (NaF) positron emission tomography/computed tomography (PET/CT) bone images in five patients. Variable degree of bowel activity is usually seen on NaF PET/CT images, and its mechanism is unknown. Gallbladder activity in our cases may indicate that hepatobiliary excretion of the 18F NaF is the reason for bowel activity on NaF PET/CT images. However, excretion of radiotracer through bowel may also contribute to the bowel activity.

Keywords: 18F sodium fluoride; bowel; gallbladder; positron emission tomography/computed tomography; sodium fluoride.

Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1 Selected transaxial computed tomography, positron emission tomography, and positron emission tomography/computed tomography fusion images demonstrate mild activity in the gallbladder (arrow) and bowel (arrowhead). Note the slight misregistration of bowel on positron emission tomography/computed tomography fusion images and photopenic artifact medially. Further, note the faint liver (L), and mild splenic (S) and gastric wall (G) activity

Figure 1 Selected transaxial computed tomography, positron emission tomography, and positron emission tomography/computed tomography fusion images demonstrate mild activity in the gallbladder (arrow) and bowel (arrowhead). Note the slight misregistration of bowel on positron emission tomography/computed tomography fusion images and photopenic artifact medially. Further, note the faint liver (L), and mild splenic (S) and gastric wall (G) activity

Figure 2 Selected transaxial computed tomography, positron emission tomography, and positron emission tomography/computed tomography fusion images demonstrate mild activity in the tip of the gallbladder sac (arrow) and significant activity in the bowel (arrow head). Further, note the faint liver (L) and splenic (S) activity

Figure 2 Selected transaxial computed tomography, positron emission tomography, and positron emission tomography/computed tomography fusion images demonstrate mild activity in the tip of the gallbladder sac (arrow) and significant activity in the bowel (arrow head). Further, note the faint liver (L) and splenic (S) activity

Figure 3 Selected transaxial computed tomography, positron emission tomography, and positron emission tomography/computed tomography fusion images of three patients (a-c) demonstrate mild activity in the gallbladder (arrows) and bowel (arrow heads) and faint activity in the liver (L), spleen (S), and gastric wall (G)

Figure 3 Selected transaxial computed tomography, positron emission tomography, and positron emission tomography/computed tomography fusion images of three patients (a-c) demonstrate mild activity in the gallbladder (arrows) and bowel (arrow heads) and faint activity in the liver (L), spleen (S), and gastric wall (G)

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