title: [Primary adenocarcinoma of renal pelvis and ureter suspected as metastatic tumor: a case report].
abstract: A 58-year-old man, who had undergone sigmoidectomy for sigmoid colon adenocarcinoma 3 years earlier, was referred to our clinic because of left ureteral tumor incidentally found by computed tomography (CT). Under the diagnosis of left ureteral carcinoma, retroperitoneoscopic left nephroureterectomy was performed. Pathological examination revealed adenocarcinoma of the left renal pelvis and ureter. Subtype of the adenocarcinoma was 'enteric type'. Five months later, urine cytology was positive and multiple non-papillary tumors were found on cystoscopy. By the transurethral resection of the tumors, bladder tumors appeared to be adenocarcinoma. Carefully considering the pathological findings and clinical course, we concluded that the tumor was not metastatic but primary adenocarcinoma followed by intravesical recurrence.
authors.affiliation: The Department of Urology, Osaka Rosai Hospital.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Yoshida
authors.forename: Kensaku
authors.initials: K
authors.lastname: Nishimura
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Harada
authors.forename: Takeshi
authors.initials: T
authors.lastname: Ujike
authors.forename: Motohide
authors.initials: M
authors.lastname: Uemura
authors.forename: Mikio
authors.initials: M
authors.lastname: Nin
authors.forename: Susumu
authors.initials: S
authors.lastname: Miyoshi
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Kawano
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000556:secondary* / Q000601:surgery; D012809:Colon, Sigmoid / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000556:secondary* / Q000601:surgery; D007682:Kidney Pelvis / Q000601:surgery; D008297:Male; D008875:Middle Aged; D016609:Neoplasms, Second Primary; D012811:Sigmoid Neoplasms / Q000473:pathology* / Q000601:surgery; D014516:Ureteral Neoplasms / Q000556:secondary* / Q000601:surgery; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis*