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Case Reports
. 2021 Oct 4;33(4):665-667.
doi: 10.1093/icvts/ivab130.

Usefulness of dynamic fluorodeoxyglucose positron emission tomography/computed tomography in diagnosing pulmonary arteriovenous malformation mimicking a lung tumour

Serkan Gungor  1 , Halil İbrahim Yakar  2
Affiliations
Case Reports

Usefulness of dynamic fluorodeoxyglucose positron emission tomography/computed tomography in diagnosing pulmonary arteriovenous malformation mimicking a lung tumour

Serkan Gungor et al. Interact Cardiovasc Thorac Surg. .

Abstract

A 61-year-old male patient with known kidney dysfunction who underwent a non-contrast thorax CT and was then referred to our department for metabolic assessment of solitary pulmonary nodule (SPN). The patient underwent dynamic FDG PET/CT to differentiate benign from malignant SPN. This case illustrates the usefulness of dynamic FDG PET/CT imaging when assessing SPN especially in patients with suspicion for pulmonary arterio-venous malformation accompanying renal failure or contrast allergy.

Keywords: FDG PET/CT; Pulmonary arterio-venous malformation; Solitary pulmonary nodule.

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Figures

Figure 1:
Figure 1:
Axial fused PET/CT and CT images of the early dynamic FDG fluorodeoxyglucose positron emission tomography/computerized tomography (PET/CT) scan (A) showed increased FDG uptake (maximum standardized uptake value (SUVmax): 4.6) in a well-circumscribed right middle lobe nodule connected with blood vessels. Subsequent axial fused PET/CT and CT images of the late dynamic FDG PET/CT scan (B) demonstrated FDG washout (SUVmax: 2.2) in areas of solitary pulmonary nodule.
Figure 2:
Figure 2:
The slopes of the time–activity curve of the nodule (A) and aorta (B) were determined and pulmonary nodule had time–activity curve slope similar to aorta. The time–activity curve pattern of solitary pulmonary nodule indicates that the nodule is most likely associated with vascular anomaly.
See this image and copyright information in PMC

References

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