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[Papillary nephrocarcinoma: radiographic and echographic aspects]
S Veneziano1, F Busato, P Pavlica
1Servizio di Radiologia, Ospedale M. Malpighi, Bologna.
La Radiologia Medica
|December 1, 1988
Summary
Radiological and sonographic studies of kidney tumors revealed that while specific features are uncommon, a combination of diminished vascularity, calcifications, and necrotic areas suggests papillary renal cell carcinoma. Patients with this subtype showed longer survival.
Area of Science:
- Urology
- Radiology
- Oncology
Background:
- Kidney tumors are a significant health concern.
- Papillary renal cell carcinoma (PRCC) is a subtype with distinct characteristics.
- Accurate diagnosis and understanding prognostic factors are crucial for patient outcomes.
Purpose of the Study:
- To analyze the radiological and sonographic patterns of pure papillary renal cell carcinoma.
- To identify imaging features suggestive of PRCC.
- To explore the relationship between PRCC and postoperative survival.
Main Methods:
- Retrospective analysis of 395 kidney tumor patients (1976-1987).
- Evaluation of radiological techniques and ultrasonography (US) findings.
- Histopathological confirmation of pure papillary renal cell carcinoma in 37 cases.
Main Results:
- Radiographic analysis revealed constant diminished vascularity (100%), frequent calcifications (35.1%), and necrotic areas (51.3%) in PRCC.
- These imaging features, while not specific individually, are strongly suggestive of PRCC when coexisting.
- No consistent US pattern was identified, but necrotic areas were often visualized.
Conclusions:
- The combination of specific imaging findings can aid in suspecting papillary renal cell carcinoma.
- Patients with PRCC demonstrated longer postoperative survival, potentially due to lower tumor aggressiveness or earlier detection.