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Arch Pathol Lab Med. 2000 Apr;124(4):604-8.

Primary hepatic marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue type in a patient with primary biliary cirrhosis.

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1
Lillian and Henry M. Stratton-Hans Popper Department of Pathology, Mount Sinai School of Medicine, New York, NY 10029, USA.

Abstract

Primary lymphoma of the liver is rare. Recently, marginal zone B-cell lymphomas of mucosa-associated lymphoid tissue (MALT) type have been described in the liver. Most of these cases occurred without known underlying liver disease, while others were seen in patients with chronic hepatitis. A case of primary hepatic MALT lymphoma in a patient with primary biliary cirrhosis was reported recently. Some authors have proposed that chronic persistent immunogenic stimulation causes development of acquired MALT and subsequently MALT lymphoma, based on the observation of MALT lymphoma in association with infectious agents, such as Helicobacter pylori and hepatitis C virus, and autoimmune diseases, such as Hashimoto thyroiditis and Sjögren syndrome. Primary biliary cirrhosis is a chronic, progressive, cholestatic liver disease characterized by destruction of intrahepatic small to medium-sized bile ducts; this disease is mediated by a cytotoxic T-cell reaction. The prolonged immune activation in primary biliary cirrhosis may play a role in the lymphomagenesis of hepatic MALT lymphoma. We describe another case of primary hepatic MALT lymphoma, which was found incidentally in a patient with end-stage primary biliary cirrhosis. This case further supports the role of immunogenic stimulation in the pathogenesis of this particular low-grade B-cell lymphoma.

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