Chronic abdominal pain secondary to portosystemic collateral vessels: A case report and review of etiologies

Abstract Introduction: Portosystemic collateral veins (PSCVs) are rare venous anomalies that arise due to portal hypertension and can closely resemble primary sclerosing cholangitis (PSC) or cholangiocarcinoma (CCA) on imaging studies. Their presence around the common bile duct (CBD) may lead to diagnostic confusion and inappropriate management. Case presentation: We report the case of a 52-year-old woman with a history of cholecystectomy and post-ERCP pancreatitis who presented with chronic right upper quadrant abdominal pain. MRCP revealed beading and wall thickening of