title: Current pathology keys of renal cell carcinoma.
abstract: BACKGROUND
  Renal cell carcinoma (RCC) in adults comprises a heterogeneous group of tumours with variable clinical outcomes that range from indolent to overtly malignant. The application of molecular genetic techniques to the study of renal neoplasms has resulted in an improved classification of these entities and a better understanding of the biologic mechanisms responsible for tumour development and progression. The current 2004 World Health Organisation classification of adult renal epithelial neoplasms has expanded rapidly with new categories recently incorporated.
  
  
  OBJECTIVE
  To review and evaluate the evidence implicating pathologic features and classification of RCC in adults as a tool to approach patients' prognosis and modulate current therapy.
  
  
  METHODS
  Members of Committee 3: Pathology, under the auspices of the International Consultation on Urological Diseases and the European Association of Urology (ICUD-EAU) International Consultation on Kidney Cancer, performed a systematic review using PubMed. Participating pathologists discussed pathologic categories and diagnostic features of RCC in adults.
  
  
  RESULTS
  We reviewed and discussed articles and the personal experiences of participating uropathologists.
  
  
  CONCLUSIONS
  The conclusions reached by the ICUD-EAU 2010 International Consultation on Kidney Cancer emphasise the appropriate pathologic diagnosis of RCC in adults as a tool to approach patients' prognosis and modulate current therapy. Further emphasis should be placed on defining risk groups of RCC and diagnostic features of unusual tumours such as familial RCC, translocation RCC, and tubular mucinous and spindle cell carcinoma. A number of recently described entities and morphologic variants of classical categories deserves recognition because they can be important in differential diagnosis and therapy.
authors: Section of Pathology, Fundació Puigvert-Universitat Autónoma de Barcelona, Barcelona, Spain. falgaba@fundacio-puigvert.es
authors: Ferran
authors: F
authors: Algaba
authors: Hideyuki
authors: H
authors: Akaza
authors: Antonio
authors: A
authors: López-Beltrán
authors: Guido
authors: G
authors: Martignoni
authors: Holger
authors: H
authors: Moch
authors: Rodolfo
authors: R
authors: Montironi
authors: Victor
authors: V
authors: Reuter
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000235:genetics / Q000473:pathology*; D000328:Adult; D002292:Carcinoma, Renal Cell / Q000235:genetics / Q000473:pathology*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000235:genetics / Q000473:pathology*; D008297:Male; D011379:Prognosis