Obstruction of the duodenum by a preduodenal portal vein in situs inversus

Preduodenal Portal Vein with Situs Inversus Totalis causing Duodenal Obstruction

“…Besides duodenal atresia, preduodenal portal vein (PDPV) may be the association or cause of duodenal obstruction. [1][2][3][4] The other common associations are cardiac anomalies and annular pancreas. [5][6][7] Congenital cardiac anomalies are present in about 5-10% of patients with situs inversus.…”

Situs Inversus Totalis with Duodenal Atresia and Preduodenal Portal Vein: A Case Report

“…The procedure of choice for both conditions is duodenoduodenostomy. 1,2,5 We performed an extended duodenoduodenostomy to bypass both anomalies. Separate anastomosis would be difficult and risky as both the pathologies were in close proximity.…”

“…Presence of PDPV in association of sit u s in v e r su s a n d d uo d e n al atr e sia is extremely rare. 1,2 We report a case, in whom combination of these two anomalies were a management challenges.…”

“…Its association with duodenal atresia is very rare. 1 Preduodenal portal vein (PDPV) itself can cause complete or partial obstruction in patients of situs inversus. Presence of PDPV in association of sit u s in v e r su s a n d d uo d e n al atr e sia is extremely rare.…”

Congenital and acquired abnormalities of the portal venous system: MDCT appearances

“…Hepatic involvement is believed to be a common manifestation of hereditary hemorrhagic telangiectasia (15). Contrast-enhanced CT commonly shows a prominent hepatic artery.…”