What are the diagnostic methods for renal cancer bone metastasis?

Kidney cancer has brought great pain to patients, but if it is not treated, it may cause lesions in other parts of the body. Patients must pay more attention to this. If you find pain in joints during the illness, it may be that kidney cancer has metastasized to the bones. So what are the diagnostic methods for bone metastasis of kidney cancer?

1. X-ray examination: This method is the most commonly used method, but it is difficult to diagnose bone metastasis in the early stage. Generally, only when the bone is destroyed by the tumor for more than 1 cm and the bone decalcification reaches 50%-70%, can X-ray films observe signs such as localized decrease in bone density, blurred or disappeared trabeculae.
2. Isotope bone scan: It is one of the highly sensitive examination methods to check whether bones are invaded by cancer.
3. CT examination: This method allows doctors to clearly observe the damage caused by cancer to bones.
4. Magnetic resonance imaging: This examination method can observe the extent to which the spine, nerves and soft tissues are damaged by cancer, and its diagnostic accuracy for bone metastasis is over 90%.
5. PET (positron emission tomography) examination: This examination method can observe tiny lesions that are difficult to detect with general examination methods.
6. Bone puncture biopsy: This method can clearly diagnose the pathological type of bone metastasis cancer, which is of great significance in guiding the treatment of the disease.