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The Korean Journal of Pathology 2001;35(1): 80-82.
Primary Extramedullary Plasmacytoma of the Colon: A Case Report.
Ok Ran Shin, Gyeong Shin Park, Youn Soo Lee, Eun Sun Jung, Sun Moo Kim, Byung Kee Kim
Department of Clinical Pathology, The Catholic University of Korea College of Medicine, Seoul 137-701, Korea. cmccp@cmc.cuk.ac.kr
Extramedullary plasmacytoma is a relatively rare tumor, occuring in a wide variety of organs and tissues, and is most frequently seen in the oral cavity and upper respiratory tract. Solitary extramedullary plasmacytoma located in the gastrointestinal tract is rare, especially the in colon. We report a case of solitary extramedullary plasmacytoma in the cecum of a 58-year-old man which simulated a carcinoma both endoscopically and radiologically. But histopathologic evaluation demonstrated a sheet-like proliferation of pure plasma cells with monoclonality for IgM and lamda chain which confirmed the diagnosis of plasmacytoma.
Key Words: Extramedullary plasmacytoma; Cecum