Renal amyloidosis is a hereditary kidney disease common in Abyssinian and Siamese cats where abnormal protein deposits destroy kidney tissue, causing progressive renal failure in young cats.
Renal amyloidosis creates a uniquely cruel trajectory: cats affected by hereditary forms develop progressive kidney failure at a relatively young age, robbing them of a significant portion of their expected lifespan while causing the same discomfort and suffering as chronic kidney disease in older cats. Nausea, lethargy, and the systemic effects of uremia affect cats that should be in the prime of life. The hereditary nature of the disease means that each affected cat represents a preventable case - breeders who test and avoid breeding carriers significantly reduce its occurrence. For affected Siamese cats, protein-losing nephropathy adds additional complications including fluid accumulation and thromboembolism risk.