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Primary Mucosa-associated Lymphoid Tissue (MALT) Lymphoma of the Rectum, Report of a Case Yoshiro Kubo 1 , Akira Kurita 1 , Shigemitsu Takashima 1 , Koichi Mandai 3 , Yoshiyuki Nishikawa 4 1Department of Surgery, National Shikoku Cancer Center 2Department of Pathology, National Shikoku Cancer Center 4Nishikawa Gastrointestinal Clinic Keyword: MALTリンパ腫 , 直腸MALTリンパ腫 , 手術療法 pp.1210-1214
Published Date 2000/8/25
DOI https://doi.org/10.11477/mf.1403104856
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 We report a case of primary rectal mucosa-associated lymphoid tissue (MALT) lymphoma. The patient, a 48-year-old woman, presented bloody stool, and endoscopy revealed an elevated lesion on the lower rectum (Rb). Results of an endoscopic specimen biopsy suggested MALT lymphoma. Lower anterior resection with dissection of the regional lymph nodes was performed. Pathological examination showed that the tumor was composed of a proliferation of centrocyte-like cells, leading to the diagnosis of MALT lymphoma. The tumor had invaded the surrounding fatty tissue and the pararectal lymph nodes were involved.

 The progression of MALT lymphoma is thought to be slow, but, when tumor has invaded beyond the muscularis layer, it can be regarded as advanced rectal cancer and operation with lymphadenectomy should be performed.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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