title: The incidence of multifocal renal cell carcinoma in patients who are candidates for partial nephrectomy.
abstract: OBJECTIVE
  A prospective study was performed to determine the incidence of multifocal renal cell carcinoma in patients who are candidates for partial nephrectomy.
  
  
  METHODS
  Preoperative imaging studies and surgical specimens in 44 patients suitable for partial nephrectomy but undergoing radical nephrectomy were prospectively reviewed.
  
  
  RESULTS
  Of 44 renal cell cancers 11 (25%) demonstrated pathological multifocality, while 10 of 11 multifocal tumors (91%) occurred in the face of a primary tumor 5 cm. or smaller. Tumor multifocality was independent of the size of the primary renal tumor but occurred with a slightly higher frequency in tumors of stage T3A or greater even if the primary tumor was small.
  
  
  CONCLUSIONS
  Partial nephrectomy in patients with unilateral renal cancer should be approached with caution and should not be performed simply because it is technically feasible.
authors.affiliation: Department of Urology, Columbia University College of Physicians and Surgeons, J. Bentley Squier Urological Clinic, New York, New York, USA.
authors.forename: M
authors.initials: M
authors.lastname: Whang
authors.forename: K
authors.initials: K
authors.lastname: O'Toole
authors.forename: R
authors.initials: R
authors.lastname: Bixon
authors.forename: J
authors.initials: J
authors.lastname: Brunetti
authors.forename: E
authors.initials: E
authors.lastname: Ikeguchi
authors.forename: C A
authors.initials: CA
authors.lastname: Olsson
authors.forename: T S
authors.initials: TS
authors.lastname: Sawczuk
authors.forename: M C
authors.initials: MC
authors.lastname: Benson
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002292:Carcinoma, Renal Cell / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy / Q000379:methods*; D011446:Prospective Studies