title: [Papillary renal cell carcinoma: comparison of CT and gross morphology].
abstract: OBJECTIVE
  To analyze the CT appearance of papillary renal cell tumor (pRCT) under consideration of gross pathology.
  
  
  METHODS
  Preoperative CT-scans of 10 patients suffering from pRCT were re-evaluated by two experienced radiologists. CT appearance was correlated to gross morphology.
  
  
  RESULTS
  On CT, 9/10 tumors were depicted as rounded, well circumscribed and sharply delineated masses. These tumors presented a hypodense central area correlating to necrosis in gross pathology. The central area of necrosis was surrounded by vital tumor tissue, presenting as a serpiginous, contrast-enhancing margin on CT. One tumor was polycyclic due to multiple tumor nodules, but sharply demarcated towards the surrounding renal tissue.
  
  
  CONCLUSIONS
  pRCT presents a quite unique CT appearance similar to its gross pathology.
authors.affiliation: Klinik für Radiologische Diagnostik, Universitätsklinikum der RWTH Aachen. mahnken@rad.rwth-aachen.de
authors.forename: A H
authors.initials: AH
authors.lastname: Mahnken
authors.forename: J E
authors.initials: JE
authors.lastname: Wildberger
authors.forename: F
authors.initials: F
authors.lastname: Bergmann
authors.forename: L
authors.initials: L
authors.lastname: Füzesi
authors.forename: G
authors.initials: G
authors.lastname: Adam
authors.forename: R
authors.initials: R
authors.lastname: Günther
mesh_terms: D000328:Adult; D000368:Aged; D002291:Carcinoma, Papillary / Q000000981:diagnostic imaging* / Q000473:pathology*; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging* / Q000473:pathology*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009336:Necrosis; D015588:Observer Variation; D014057:Tomography, X-Ray Computed
vernacular_title: Das papilläre Nierenzellkarzinom: Vergleich von CT und Pathomorphologie.