Nucleolar organiser regions in kidney tumours and xanthogranulomatous pyelonephritis.

Nucleolar organiser regions in kidney tumours and xanthogranulomatous pyelonephritis.

The AgNOR argyrophil technique was applied to clear cut examples of renal adenoma (n = 7), clear cell carcinoma (n = 9), and xanthogranulomatous pyelonephritis (n = 5). There was no significant difference between mean AgNOR counts per cell in adenomas and carcinomas, supporting the idea that there is a continuous spectrum of kidney tumours. Xanthogranulomatous pyelonephritis and clear cell carc...

Nucleolar organiser regions in renal tumours.

Nucleolar organiser regions in pathology.

Traditional approaches to pathological diagnosis include macroscopic examination and formalin fixation with the preparation of paraffin sections stained with a variety of histochemical techniques. These routine approaches however may be disappointing in the assessment of many conditions and occasionally fail to render a precise diagnosis or provide adequate prognostic information. Consequently ...

Interphase argyrophilic nucleolar organiser regions and nucleolar counts in transitional cell bladder tumours.

AIMS To see whether a correlation exists between clinicopathological parameters, argyrophilic nucleolar organiser regions (AgNORs), and nucleolar counts in the nuclei of tumour cells in patients with transitional cell bladder carcinoma. METHODS Paraffin wax embedded sections from a total of 62 cases of primary transitional cell bladder carcinoma were stained with the silver colloid method. Th...

Xanthogranulomatous pyelonephritis in a horse-shoe kidney.

Xanthogranulomatous pyelonephritis (XGPN) represents an unusual suppurative granulomatous reaction to chronic infection, often in the presence of chronic obstruction from a calculus. We present a case of XGPN in a horse shoe kidney in an adult. Hemi-nephrectomy of the involved side was followed by clinical improvement. The case highlights the importance of early hemi-nephrectomy in XPGN with ho...