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Diagnostic Imaging Pathways - Renal Mass

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1 Click to view full size image  

Simple Renal Cyst

Image 1 (Ultrasound): Small simple benign cyst (arrow) in the upper pole of the right kidney with foci of calcification in or adjacent to the wall.

       
2 Click to view full size image  

Renal Cell Carcinoma

Image 2 (Computed Tomography): Large right kidney mass with central necrosis consistent with renal cell carcinoma. There is tumour extension into the right renal vein (arrow).

       
3a Click to view full size image   Renal Cell Carcinoma

Image 3a: Nephrectomy showing a circumscribed and encapsulated renal cell carcinoma arising from the lower pole of the kidney. The cut surface shows a heterogenous appearance typical of malignancy with patchy areas of necrosis (blue arrow) and haemorrhage (red arrow).

3b Click to view full size image   Image 3b (H&E, x10): Histological section of a conventional clear cell renal cell carcinoma showing sheets and nests of malignant cells with intervening thin-walled vessels. The cells demonstrate irregular and hyperchromatic nuclei surrounded by abundant clear cytoplasm (clear cells).

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