A rare subtype of renal cell carcinoma, occurring in the context of end-stage kidney disease and acquired cystic kidney disease, characterised by a usually well circumscribed, solid, multifocal, bilateral tumour with inter or intracellular micro lumen formation (leading to cribiform architecture). Tumours are often diagnosed incidentally in early stages, although complications caused by renal cysts (dull flank or abdominal pain, fever) or renal parenchymal bleeding may mask the underlying neoplastic process. Most have an indolent behaviour. [from
SNOMEDCT_US]