case_images: PMC11670779_01
case_images: Selected cut of an upper gastrointestinal contrast study showing dilated and elongated stomach, dilated first and second part of the duodenum, delayed passage of the contrast, and scanty gas in the distal abdomen keeping with features of chronic partial duodenal obstruction.
case_images: rjae813f1.jpg
case_images: PMC11670779_01_rjae813f1.jpg
case_images: f1
case_images: After rehydration and correction of electrolyte imbalances, an upper gastrointestinal series showed signs of partial duodenal obstruction (Fig. 1).
case_images: Intraoperative picture showing the PDPV crossing over the duodenum and causing duodenal obstruction. C, colon; D, duodenum; P, preduodenal portal vein.
case_images: rjae813f2.jpg
case_images: PMC11670779_01_rjae813f2.jpg
case_images: f2
case_images: Potential causes of CDO such as malrotation, annular pancreas, and intestinal duplication were ruled out, following the duodenum, a PDPV was found causing the obstruction (Fig. 2).
case_images: PMC11670779_02
case_images: Interpretive view of biliary atresia case showing a PDPV crossing the second part of the dedendum. D, dedendum; L, liver; P, preduodenal portal vein.
case_images: rjae813f3.jpg
case_images: PMC11670779_02_rjae813f3.jpg
case_images: f3
case_images: During the Kasai portoenterostomy procedure, a PDPV was incidentally noted (Fig. 3).