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The Korean Journal of Pathology 1997;31(12): 1317-1319.
Primary MALT(mucosa-associated lymphoid tissue) Type Lymphoma of the Liver.
Do Youn Park, Jee Yeon Kim, Hyo Jeong Chae, Jin Sook Lee, Chang Hun Lee, Mee Young Sol, Kang Suek Suh, Sun Kyung Lee
Department of Pathology, College of Medicine, Pusan National University, Pusan 602-739, Korea.
Primary non-Hodgkin' lymphomas of the liver, an organ normally devoid of a native lymphoid tissue, are very rare. We recently experienced a case of a primary low-grade hepatic B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) type in a 36-year-old woman. The ultrasonography revealed a 5 cm sized mass in the right lobe of the liver. A right segmentectomy of the liver was done and showed a relatively well-circumscribed brownish yellow lobulated homogenous mass, measuring 5.5x4.5 cm in size. Histologic sections of liver mass revealed large lymphoid follicles with reactive germinal centers, follicular colonization by centrocyte-like cells (CCL cells), and lymphoepithelial lesions. The CCL cells were positive for B-cell (CD20), LCA (CD45RA), Bcl-2 oncoprotein, and lambda light chain.
Key Words: Primary malignant lymphoma; MALT type; Liver
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