Chronic pyelonephritis is a kidney condition caused by long-term kidney infections that can damage the kidney over several years. Renal cell carcinoma is a type of kidney cancer that forms solid sheets of tumor cells with clear or granular pink cytoplasm due to high lipid and glycogen content separated by sparse vascular tissue. These clinical findings were observed upon examination of a kidney biopsy.

1. CHRONIC PYELONEPHRITIS

2. RENAL CELL CARCINOMA
Solid sheets of tumor cells with clear or granular pink cytoplasm due to high amounts of
lipid and glycogen separated by scanty vascular stroma