title: [A case of malignant lymphoma originating from paraureteral tissue].
abstract: A 53-year-old man was admitted with epigastric discomfort. Excretory pyelography demonstrated left non visualizing kidney. Computed tomography showed the dilatation of left renal pelvis and a mass along with a left lower ureter. Retrograde pyelography showed the stenosis of left lower ureter. Urine cytologies from both voided and upper urinary tract showed class I. Ureteroscopy revealed the normal ureteral mucosa, suggesting extrinsic obstruction of the ureter. The operation was performed under the diagnosis of retropelvic tumor. The tumor could be easily resected from the left ureter. The pathological diagnosis was follicular lymphoma. There was no prolificative accumulation on Gallium scintigraphy after the operation. The tumor was considered to have originated from paraureteral tissue.
authors.affiliation: Department of Urology, Yamaguchi University School of Medicine.
authors.forename: Ryo
authors.initials: R
authors.lastname: Inoue
authors.forename: Shiro
authors.initials: S
authors.lastname: Yamaguchi
authors.forename: Yumikage
authors.initials: Y
authors.lastname: Kishi
authors.forename: Satoshi
authors.initials: S
authors.lastname: Shirataki
authors.forename: Masahiro
authors.initials: M
authors.lastname: Tsuchida
authors.forename: Katsusuke
authors.initials: K
authors.lastname: Naito
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Hoshii
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Otsuka
mesh_terms: D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology* / Q000601:surgery; D007682:Kidney Pelvis; D008224:Lymphoma, Follicular / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D014516:Ureteral Neoplasms / Q000473:pathology* / Q000601:surgery; D014517:Ureteral Obstruction / Q000175:diagnosis; D018666:Ureteroscopy; D014567:Urography