Kidney cancer occurs in the mucous membrane of the tubules or in other parts of the organ. About 90% of cases are kidney adenocarcinoma (renal cell carcinoma). Its danger lies in its rapid spread throughout the body through the lymphatic system and bloodstream. If not treated in a timely manner, metastases will quickly reach distant structures, which will worsen the survival prognosis.
Kidney cancer may not manifest itself for a long time until the tumor reaches a large size and blood appears in the urine. That is why this type of cancer is often detected already at stage 4. Symptoms that should alert you:
pain and tightness in the lateral area;
decreased appetite;
fatigue;
weight loss.
Scientists have not fully identified why kidney carcinoma occurs. Among the most likely causes, doctors name smoking, addiction to diuretics, abuse of meat products, age over 70 years, diabetes, and genetic predisposition.