title: Histopathological evaluation of surgically treated adult renal tumors: Report from a tertiary care center in India.
abstract: BACKGROUND
  This retrospective study was performed in a tertiary care center from India analyzing the histopathological reports and the clinical data of the adult patients admitted in this institute with a diagnosis of renal tumors and had undergone nephrectomy for the disease.
  
  
  OBJECTIVE
  The objective of this study is to determine the relative frequencies of different renal tumors in adults (above the age of 16 years) and to analyze the histopathological characters of the tumors.
  
  
  METHODS
  In this retrospective study, we have analyzed the histopathology reports along with the demographic and clinical data of the adult patients who had undergone nephrectomy for renal tumors in our institute from January 2005 to December 2011.
  
  
  RESULTS
  A total 113 adult patients underwent tumor nephrectomy during the last 7 years in our institute. Mean age of the patients was 54.5 years (range 16-69 years). Male:Female ratio was 1.9:1. Out of 131 cases of adult renal tumors, 91.6% cases were malignant and 8.45 cases were benign tumors. Among the malignant tumors, renal cell carcinoma was the most common type. There were 2 cases of renal primitive neuroectodermal tumors and one case of renal myofibroblastoma in our series.
  
  
  CONCLUSIONS
  The spectrum of adult renal tumors in this series is consistent with the other series of cases reported by different authors. Only few cases of the renal tumors were diagnosed incidentally among our patients which is just opposite to the rate of renal tumors diagnosed incidentally in the developed countries. Myofibroblastoma, a benign kidney tumor diagnosed in our series is probably the first reported case in the world.
authors.affiliation: Department of Urology, North Bengal Medical College, Sushruta Nagar, Darjeeling, India.
authors.forename: B
authors.initials: B
authors.lastname: Datta
authors.forename: A
authors.initials: A
authors.lastname: Giri
authors.forename: B
authors.initials: B
authors.lastname: Halder
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy; D012189:Retrospective Studies; D062606:Tertiary Care Centers; D055815:Young Adult