title: [Renal or perirenal malignant lymphoma: report of three cases].
abstract: We report three cases of renal or perirenal malignant lymphoma. The patients were a 69-year-old woman presenting with lumbago, a 43-year-old man with fever and erythema, and a 69-year-old woman with general malaise. In each case, renal or perirenal tumor was discovered by abdominal ultrasound. Biopsy and microscopic examination revealed the diagnosis of non-Hodgkin's malignant lymphoma. The computerized tomography patterns of the cases were different from each other; "direct invasion" in the first case, "solitary nodule" in the second case, and "engulfment" in the third case. Chemotherapy and/or radiation therapy were performed. Only the third case is still alive at present. The computerized tomography pattern of renal or perirenal malignant lymphoma was classified into five groups; I) multiple nodules, II) solitary nodule, III) engulfment, IV) direct invasion, V) diffuse infiltration. This classification should be useful in making an accurate and early diagnosis.
authors.affiliation: Department of Urology, Faculty of Medicine, Kyoto University.
authors.forename: K
authors.initials: K
authors.lastname: Yoshimura
authors.forename: M
authors.initials: M
authors.lastname: Kawakita
authors.forename: H
authors.initials: H
authors.lastname: Onishi
authors.forename: T
authors.initials: T
authors.lastname: Hashimura
authors.forename: H
authors.initials: H
authors.lastname: Takeuchi
authors.forename: O
authors.initials: O
authors.lastname: Yoshida
authors.forename: S
authors.initials: S
authors.lastname: Fukuhara
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging*; D016393:Lymphoma, B-Cell / Q000000981:diagnostic imaging*; D016403:Lymphoma, Large B-Cell, Diffuse / Q000000981:diagnostic imaging*; D016399:Lymphoma, T-Cell / Q000000981:diagnostic imaging*; D008297:Male; D014057:Tomography, X-Ray Computed