Primary Malignant Lymphoma of the Rectum, Report of a Case Tonan Hioki 1 1The Second Department of Surgery, School of Medicine, Mie University pp.565-569
Published Date 1988/5/25
DOI https://doi.org/10.11477/mf.1403108148
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 A 66 year-old man came to our hospital complaining of diarrhea and tenesmus, which had lasted for two months. Occult blood test of feces was positive and a rectal mass was detected by digital examination. The mass occupied the entire circle of the rectum and extended 4 to 15 cm from the anal verge. The mass was soft and there was no stricture of the rectum. The surface was uneven, but there was no ulceration. The tumor margin was clear but not elevated. Findings by a barium enema were consistent with those of digital examination. Endoscopically, the mass consisted of numerous nodules of various size. Most nodules were yellowish-white, but some showed redness or dark-blue tone. Histologic examination of the biopsy specimen was not conclusive, but suggested malignant lymphoma. Systemic involvement by the malignant lymphoma was excluded after examination of peripheral blood and bone marrow aspirate. The mass was removed totally by an abdomino-perineal operation. The size of the mass was 11.0 × 10.5 cm and staging was P0 H0 n1 (+) s2 (stage Ⅲ) . The patient is now receiving VEPA treatment.

 Primary malignant lymphoma of the rectum is rare and only 39 cases have been reported in Japanese medical literature. We emphasize here that preoperative diagnosis of primary malignant lymphoma of the rectum can be made from its characteristic properties detected by digital examination, barium enema and endoscopic examination, together with histologic examination of the biopsy specimen.

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