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Insights into Imaging
Fig. 20 | Insights into Imaging

Fig. 20

From: The inferior vena cava: anatomical variants and acquired pathologies

Fig. 20

Malignant extra-adrenal phaeochromocytoma invading IVC. a Coronal portal venous phase CT shows a heterogeneously enhancing peri-renal mass (arrow) with possible central necrosis that abuts and extends into the infrarenal IVC (arrowhead). b SPECT CT demonstrates a focus of abnormal MIBG uptake (arrow) within the region of the peri-renal mass. Selected MR images show the retroperitoneal lesion (c) partially obstructing the IVC (arrowhead), demonstrating heterogeneous elevated T2 signal (arrow) on the selected T2-weighted fat-saturated axial image and (d) heterogeneous enhancement (arrow) on the selected T1-weighted fat-saturated axial image

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