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EJNMMI Reports
Fig. 1 | European Journal of Hybrid Imaging

Fig. 1

From: PET/MR: primary inferior vena cava leiomyosarcoma

Fig. 1

PET/MRI (A) images illustrate solid and hypermetabolic (elevated FDG uptake SUVmax 11.91) expansive formation in the retroperitoneum. It can be seen as iso-/hypointense on T1 (B) and heterointense on T2 and T2 FAT SAT (C, D respectively), with well-defined and lobulated borders. It presents a heterogeneous enhancement after IV contrast (G), due to necrosis areas, high restriction on diffusion images (E–F) and contrast enhancement intensifies in delayed images (H). Negative peak sign from psoas muscle was useful in the diagnosis (see description below) (B–D)

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