case_images: PMC9634827_01
case_images: (a-c) Ultrasound abdomen showing retroperitoneal mass of heterogeneous echotexture along the course of the left gonadal vein involving adjoining left ureter with proximal hydroureter.
case_images: SAJR-26-2501-g001.jpg
case_images: PMC9634827_01_SAJR-26-2501-g001.jpg
case_images: F0001
case_images: Ultrasonography of the abdomen and pelvis demonstrated a well-defined solid mass in the left retroperitoneum with a lobulated outline, anterolateral to the adjoining left psoas muscle, causing compression of the left upper ureter with resultant moderate proximal hydronephrosis and hydroureter (Figures 1a-c).
case_images: (a-b) Axial CT abdomen- arterial (a) and portal phase (b) revealing a hepatic metastasis (white arrow) in segment VI appearing hyperdense in the arterial and hypodense in the portal phase.
case_images: SAJR-26-2501-g002.jpg
case_images: PMC9634827_01_SAJR-26-2501-g002.jpg
case_images: F0002
case_images: The largest lesion measured 16 mm x 12 mm in segment VI (Figures 2a, b).
case_images: (a-c) Axial CT of abdomen showing a well defined solid retroperitoneal mass (white arrow) anterior to the left psoas and medial to the descending colon appearing isodense to muscle on pre-contrast (a), showing heterogeneous post contrast enhancement (b), causing proximal left hydronephrosis and hydroureter (red arrow) (c).
case_images: SAJR-26-2501-g003.jpg
case_images: PMC9634827_01_SAJR-26-2501-g003.jpg
case_images: F0003
case_images: The adjacent left ureter was markedly compressed and involved by the mass with resultant proximal obstructive uropathy (Figures 3a-c).
case_images: Coronal oblique (a), showing a well-defined heterogeneous mass (red arrow) along the course of left gonadal vein causing hydronephrosis and hydroureter. Coronal (b-c) and sagittal (d) reformatted CT abdomen reveal a well defined heterogeneously enhancing retroperitoneal mass (red arrow) along the course of the left gonadal vein causing filling defect (yellow arrow)(c-d).
case_images: SAJR-26-2501-g004.jpg
case_images: PMC9634827_01_SAJR-26-2501-g004.jpg
case_images: F0004
case_images: There was no excretion of contrast by the left kidney on the delayed phase (Figure 4a-d).