Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Med Cases and Elmer Press Inc
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Case Report

Volume 14, Number 7, July 2023, pages 255-259

Mucosa-Associated Lymphoid Tissue Lymphoma of the Ascending Colon Successfully Removed With Endoscopic Submucosal Dissection

Figures

Figure 1.
Figure 1. Colonoscopy image of the broad-based polyp in the ascending colon.
Figure 2.
Figure 2. Histologic findings in hematoxylin and eosin stain revealing a vaguely nodular infiltration of small- to medium-sized lymphocytes with only a few scattered atypical cells in the mucosa and submucosa.
Figure 3.
Figure 3. (a) Immunohistochemical stain for CD20 showed that the infiltrate dominates almost entirely of CD20+ B cells. (b) Immunohistochemistry was positive for Bcl-2.