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Hi there,This is Dr Basu, experienced Internal Medicine Specialist.I am here to address your concerns and provide great service.
Portocaval lymph node can get bigger due to the infection or inflammation. Viral hepatitis is a common cause for example. Malignancies from liver, bile duct, gallbladder, pancreas can also cause such lymph node enlargement. Usually CT scan will also detect other lesions in the liver, pancreas as well in case of malignancy. Still, you should discuss with your specialist for better clinical correlation. Best wishes,It was my pleasure to help you today.If I have answered all your questions, Please rate my response Excellent (click on the 5th star on top).Please bookmark my profile for fast, reliable authentic answers!This is the link to my profile:http://www.justanswer.com/medical/expert-mysticdoc/