Utility of 18 F-Fluorodeoxyglucose positron emission tomography/magnetic resonance imaging in the diagnosis of cardiac paraganglioma

Figures

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  Figure 1. Axial intravenous contrast-enhanced computed tomography image shows an intensely enhancing well-defined mass (arrow) between the left superior pulmonary vein and the pulmonary artery and abutting the left anterior descending artery

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  Figure 2. Hybrid 18F-Fluorodeoxyglucose positron emission tomography/magnetic resonance (Philips Ingenuity TF PET/MR Philips Healthcare, Andover, MA, USA) was performed. (a) Vertical long axis T2-weighted magnetic resonance image shows a hyperintense epicardial mass measuring 3 cm × 1.8 cm abutting the left anterior descending artery. (b) Axial postcontrast T1 fat suppressed magnetic resonance imaging shows intense contrast enhancement of the mass

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  Figure 3. Axial (a) and coronal (b) hybrid 18F-Fluorodeoxyglucose positron emission tomography/magnetic resonance images of the same patient show the mass to be intensely hypermetabolic with standard uptake value of 16. No other hypermetabolic mass is seen to suggest metastatic disease

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  Figure 4. Gross surgical specimen of faint blue and tan-red muscular soft tissue with attached tan-yellow soft fatty tissue measuring 2.9 cm × 2.8 cm × 1.9 cm

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  Figure 5. Histopathological image at 100× magnification (a) a tumor with classic Zellballen cell nests with rich vascular network and intervening fibrous bands. The same histopathological image at 400× (b) moderate nuclear atypia with “salt-and-pepper” chromatin pattern. This was consistent with paraganglioma