Korean J Gastrointest Endosc.  2008 Feb;36(2):102-106.

A Case of Primary B Cell Mucosa-associated Lymphoid Tissue Lymphoma Presenting as a Solitary Rectal Mass

• Kim JH
• Moon YS
• Lee SH
• Park JS
• Bae WK
• Kim NH
• Chang S
• Kim KA
• Lee HR
• Lee JS

Abstract

Primary extranodal B cell lymphoma of mucosa- associated lymphoid tissue (MALT) can develop in diverse anatomic locations such as the stomach, salivary gland, thyroid, lung, and breast. Its distribution in the GI tract is as follows: 50~60% in the stomach, 20~30% in the small intestine and ileocecal area and 10% in the colorectal area. Although autoimmune and infectious diseases are known as the main etiologies, H. pylori infection has been clearly shown to play a causative role in lymphomagenesis, especially in the stomach. H. pylori eradication therapy only can induce disease remission nearly in 80% of the cases of gastric MALT lymphoma. However, there is lack of evidence for the extragastric area. In this case, a 71-year-old woman with low abdominal pain was diagnosed as having a rectal MALT lymphoma that was noted as a solitary rectal mass in a colonoscopic examination. Remission induction was commenced by H. pylori eradication and radiation therapy.

Keyword

Mucosa associated lymphoid tissue lymphoma; Rectum; Helicobacter pylori eradication; Radiotherapy

MeSH Terms

Abdominal Pain
Aged
Breast
Communicable Diseases
Female
Gastrointestinal Tract
Humans
Intestine, Small
Lung
Lymphoid Tissue
Lymphoma, B-Cell
Lymphoma, B-Cell, Marginal Zone
Rectum
Remission Induction
Salivary Glands
Stomach
Thyroid Gland