J Korean Soc Radiol.  2014 Apr;70(4):279-282. 10.3348/jksr.2014.70.4.279.

Primary Diffuse Large B Cell Lymphoma Developing at the Ileocolonic Anastomosis Site after Right Hemicolectomy for Adenocarcinoma: A Case Report

• Oh HY
• Choi SJ
• Kim HS
• Kim JH
• Choi HY

• KMID: 2041938
• DOI: http://doi.org/10.3348/jksr.2014.70.4.279

Abstract

Lymphoma is rarely associated with ileocolonic surgery. We report the imaging findings of primary diffuse large B-cell lymphoma arising in an ileocolonic anastomosis site, found five years after a right hemicolectomy for adenocarcinoma in the ascending colon.

MeSH Terms

Adenocarcinoma*
Colon, Ascending
Lymphoma
Lymphoma, B-Cell*

Figure

• 

  Fig. 1 A 72-year-old man underwent a right hemicolectomy for adenocarcinoma of the ascending colon five years ago. A. Colonoscopy shows ulcerofungating mass at the ileocolonic anastomosis site. B. Contrast-enhanced CT shows enhancing mass within the colon at the ileocolonic anastomosis site (arrow) with regional enlarged lymph node (arrowhead). C-F. Microscopic examination shows diffuse infiltration of large lymphoid cells with small multiple nucleoli [H&E, × 100 (C), × 400 (D)], which were positive at B-cell marker for CD20 (E) and negative at T-cell marker, CD3 (F). G. Colonoscopy after combination chemotherapy shows nearly complete remission state of the tumor at the ileocolonic anastomosis site. H. Contrast-enhanced CT after combination chemotherapy shows marked regression of the tumor at the anastomosis site (arrow) with resolution of adjacent lymph node.

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