A, B, C, D shows advanced stages of renal cancer characterised by Intra-tumoral fibrosis (ITF), severe damage of renal parenchyma, including degeneration of renal convoluted tubules and congestion. (ACs: Abnormal cell aggregation, G: glomeruli). (A. X 4, B. X10, C.X20, D. X40) (H and E).