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Case Reports in Gastrointestinal Medicine
Volume 2013, Article ID 930918, 4 pages
http://dx.doi.org/10.1155/2013/930918
Case Report

Precursor B Lymphoblastic Lymphoma Involving the Stomach

1Department of Gastroenterology, Onomichi Municipal Hospital, Onomichi 722-8503, Japan
2Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan
3Department of Internal Medicine, Onomichi Municipal Hospital, Onomichi 722-8503, Japan
4Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan

Received 5 May 2013; Accepted 4 June 2013

Academic Editors: P. Abraham, O. I. Giouleme, I. M. Leitman, and S. Nomura

Copyright © 2013 Masaya Iwamuro et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Precursor B lymphoblastic lymphoma is a high-grade neoplasm arising from precursor lymphocytes of B-cell lineage. Extranodal sites such as the skin and bone are often involved, but gastrointestinal lesions of this disease are rarely encountered. Due to the infrequency, macroscopic forms of the gastrointestinal lesions have not been fully described. In this report, we present a case of precursor B lymphoblastic lymphoma involving the stomach, pancreas, bone, and bone marrow. Esophagogastroduodenoscopy showed multiple flat elevated lesions with irregular mucosa in the stomach.