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Updated: Jul 8, 2026

Murine Bilateral Renal Lymphadenectomy
Published on: December 30, 2025
Primary mucosa-associated lymphoid tissue-type lymphoma arising in the kidney
Yoichiro Kato1, Michihiko Hasegawa, Susumu Numasato
1Departments of Urology and Pathology, Morioka Red Cross Hospital, Morioka, Japan. katouro@morioka.jrc.or.jp
Abstract:
We report a case of primary low-grade lymphoma of mucosa-associated lymphoid tissue (MALT) arising from the kidney in a 30-year-old man with an abdominal mass in the right flank detected by ultrasonography. Radical nephrectomy was performed under a preliminary diagnosis of renal cell carcinoma. The final histological diagnosis was MALT-type lymphoma. To the best of our knowledge, only five reports of primary MALT-type lymphoma in the kidney have been published in the literature so far. All cases were surgically treated and only one case went on to chemotherapy postoperatively.
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