title: Renal lesions in Von Hippel-Lindau disease: the benign, the malignant, the unknown.
abstract: OBJECTIVE
  To describe the features and treatment of renal lesions in von Hippel-Lindau disease (VHL) from a series of patients, to highlight important issues in the management of these lesions.
  
  
  METHODS
  We performed a retrospective study in 7 patients with VHL who underwent surgery for renal lesions between January 1990 and July 1996. The initial evaluation consisted of an abdominal CT scan and renal arteriography.
  
  
  RESULTS
  The mean age of patients at the time of discovery was 38 (+/- 12.01 years). All cases were of type 1. Radiology assessment underestimated the gravity of the lesions in 5 patients. In all patients, unilateral surgery was performed with the kidney being conserved in 4 cases. Of the 44 lesions removed, 23 had signs of progressiveness (atypical or malignant cyst, renal cell carcinoma), most of the cancers were of low grade. 84% of the lesions did not exceed 3 cm and 48% were </=1 cm. During follow-up (42 months), 2 patients relapsed.
  
  
  CONCLUSIONS
  The clinical and pathological features of renal lesions in VHL require strict and early follow-up (from the age of 15). Only under these circumstances should primary conservative surgery be performed, however, recurrences are frequent. This conservative approach remains to be validated by multicentric prospective studies.
authors.affiliation: Department of Urology, CHU Dupuytren, Limoges, France.
authors.forename: F
authors.initials: F
authors.lastname: Salomé
authors.forename: P
authors.initials: P
authors.lastname: Colombeau
authors.forename: V
authors.initials: V
authors.lastname: Fermeaux
authors.forename: P
authors.initials: P
authors.lastname: Cazaux
authors.forename: J P
authors.initials: JP
authors.lastname: Dumas
authors.forename: P
authors.initials: P
authors.lastname: Pfeifer
authors.forename: J J
authors.initials: JJ
authors.lastname: Moreau
authors.forename: S
authors.initials: S
authors.lastname: Richard
authors.forename: F
authors.initials: F
authors.lastname: Labrousse
mesh_terms: D000328:Adult; D000792:Angiography; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006579:Heterozygote; D006801:Humans; D007668:Kidney / Q000473:pathology / Q000601:surgery; D052177:Kidney Diseases, Cystic / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy / Q000379:methods; D010375:Pedigree; D011379:Prognosis; D012008:Recurrence; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed; D006623:von Hippel-Lindau Disease / Q000000981:diagnostic imaging* / Q000235:genetics / Q000473:pathology* / Q000601:surgery