Ann Coloproctol.  2017 Feb;33(1):35-38. 10.3393/ac.2017.33.1.35.

Mucosa-Associated Lymphoid-Tissue Lymphoma of the Cecum and Rectum: A Case Report

• Nam MJ
• Kim BC
• Park SC
• Hong CW
• Han KS
• Sohn DK
• Park WS
• Chang HJ
• Oh JH

• KMID: 2377388
• DOI: http://doi.org/10.3393/ac.2017.33.1.35

Abstract

A colonic mucosa-associated lymphoid-tissue (MALT) lymphoma is relatively rare compared to lymphomas of the stomach or small intestine. We present a case of a MALT lymphoma in the cecum and rectum found during screening colonoscopy. A 54-year-old female, who had undergone right-breast-conserving surgery with axillary dissection due to an invasive ductal carcinoma and a left-breast excisional biopsy due to microcalcification following adjuvant chemoradiation therapy 3 years earlier, was found to have 3-mm-sized smooth elevated lesions in both the cecum and rectum. No pathologic lesion or lymphadenopathy was found at any other site, but chronic gastritis negative for Helicobacter pylori infection was found. The polyps were removed by using an endoscopic biopsy and revealed an extra nodal marginal zone B-cell MALT lymphoma, showing positive for CD3 and CD20 by immunohistochemical staining. The patient underwent close observation without any additional treatment and has shown no evidence of recurrence as of her last visit.

Keyword

MALT lymphoma; Cecum; Rectum; Colonoscopy

MeSH Terms

B-Lymphocytes
Biopsy
Carcinoma, Ductal
Cecum*
Colon
Colonoscopy
Female
Gastritis
Helicobacter pylori
Humans
Intestine, Small
Lymphatic Diseases
Lymphoma*
Lymphoma, B-Cell, Marginal Zone
Mass Screening
Middle Aged
Polyps
Rectum*
Recurrence
Stomach