A Case of Primary Hepatic Mucosa-Associated Lymphoid Tissue Lymphoma in a Patient With Primary Biliary Cholangitis and Hashimoto's Thyroiditis

Abstract

Mucosa-associated lymphoid tissue (MALT) lymphoma is a low-grade malignant lymphoproliferative disease, representing a low percentage of newly diagnosed lymphoma cases. Although its exact cause is still unclear, it is commonly associated with infections or autoimmune diseases. The stomach is the most frequent site for MALT lymphoma, with primary hepatic MALT lymphoma being exceptionally rare. Cases of primary hepatic MALT lymphoma often coincide with viral hepatitis. In this report, we present a case of primary hepatic MALT lymphoma in a patient with no history of hepatitis but complicated by primary biliary cholangitis (PBC) and Hashimoto's thyroiditis.