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[Papillary renal cell carcinoma: comparison of CT and gross morphology]
A H Mahnken1, J E Wildberger, F Bergmann
1Klinik für Radiologische Diagnostik, Universitätsklinikum der RWTH Aachen. mahnken@rad.rwth-aachen.de
Objective:
To analyze the CT appearance of papillary renal cell tumor (pRCT) under consideration of gross pathology.
Material And 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.