title: [Renal adenocarcinoma. Prognostic factors].
abstract: OBJECTIVE
  To perform a descriptive analysis of 57 cases of renal adenocarcinoma treated in our department, trying to identify those variables that modify survival, and to evaluate the impact of incidental diagnosis on survival.
  
  
  METHODS
  57 cases of renal cell carcinoma treated in our department from 1996 to 2001 were retrospectively reviewed. Mean follow-up time was 30 months. The impact on survival of incidental diagnosis, stage, and other variables was evaluated. We used the chi-square test to study the association between qualitative variables, and the prevalence proportion with 95% confidence intervals to quantify the magnitude of the association.
  
  
  RESULTS
  Mean age on presentation was 63 +/- 12.57 yr. The most frequent histological type was classic renal cell carcinoma (83.6%). hematuria was the presenting sign in most cases. 19.3% were incidentally diagnosed with a 24 month survival was 100% in comparison to 59% of the patients presenting with clinical signs/symptoms (p = 0.0218); 24 month survival rates for stages I-II was 95.83% in comparison to 48.48% for stage III-IV.
  
  
  CONCLUSIONS
  Renal cell adenocarcinoma is an aggressive tumor with a variety of clinical presentations which delay its diagnosis. Tumor stage is one of the main prognostic factors. Nowadays, the greater availability of radiological tests, mainly ultrasounds, has resulted on an increase in the number of incidental diagnosis and therefore a greater number of early stages; it is advisable to perform a renal pathology screening on every patient who undergoes abdominal ultrasound for any other reason.
authors.affiliation: Servicio de Urología, Hospital General Universitario de Alicante, Alicante, España. silviachillon@hotmail.com
authors.forename: Francisca Silvia
authors.initials: FS
authors.lastname: Chillón Sempere
authors.forename: Pedro José
authors.initials: PJ
authors.lastname: García Tabar
authors.forename: Julián
authors.initials: J
authors.lastname: Megías Garrigós
authors.forename: Juan José
authors.initials: JJ
authors.lastname: Lobato Encinas
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000401:mortality; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000401:mortality; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate; D013997:Time Factors