case_images: PMC10214067_01
case_images: Endoscopic view of the stenosis in the second portion of the duodenum.
case_images: 10.1177_2050313X231176395-fig1.jpg
case_images: PMC10214067_01_10.1177_2050313X231176395-fig1.jpg
case_images: fig1-2050313X231176395
case_images: The patient proceeded to an upper endoscopy, which revealed an impassable D2 stenosis with D1 dilation and bilious reflux (Figure 1).
case_images: CT scan in axial plan showing the duodenal compression between the aorta and superior
  mesenteric artery, with a narrowed AMD 3.5 mm.
case_images: 10.1177_2050313X231176395-fig2.jpg
case_images: PMC10214067_01_10.1177_2050313X231176395-fig2.jpg
case_images: fig2-2050313X231176395
case_images: The aortomesenteric angle (AMA) and aortomesenteric distance (AMD) were 12  (normal range, 38 -65 ) and 3.5 mm (normal range, 10-28 mm), respectively (Figures 2 and 3).
case_images: The sagittal reconstruction contrast-enhanced CT image shows an AMA of 12.2 .
case_images: 10.1177_2050313X231176395-fig3.jpg
case_images: PMC10214067_01_10.1177_2050313X231176395-fig3.jpg
case_images: fig3-2050313X231176395
case_images: The aortomesenteric angle (AMA) and aortomesenteric distance (AMD) were 12  (normal range, 38 -65 ) and 3.5 mm (normal range, 10-28 mm), respectively (Figures 2 and 3).
case_images: Axial plan showing narrowing between SMA and aorta: distance 3.7 mm, and a normal
  aspect of the left renal vein.
case_images: 10.1177_2050313X231176395-fig4.jpg
case_images: PMC10214067_01_10.1177_2050313X231176395-fig4.jpg
case_images: fig4-2050313X231176395
case_images: Moreover, a dilated posterior LRV and left lumbar ascending vein, without a dilation of the left gonadal vein was found, suggesting the diagnosis of the posterior NCP (Figure 4).
case_images: Axial and sagittal reconstruction contrast-enhanced CT scan showing the dilation of the
  lumbar plexus (white arrow showing the posteriori left renal vein and its communication
  with the ascending lumbar vein).
case_images: 10.1177_2050313X231176395-fig5.jpg
case_images: PMC10214067_01_10.1177_2050313X231176395-fig5.jpg
case_images: fig5-2050313X231176395