Kidney Cancer

Comprehensive kidney cancer care with advanced diagnostics, surgical expertise, and personalized treatment plans from experienced nephrologists and oncologists in Delhi.

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Overview

Kidney cancer (renal cancer) is a disease in which malignant (cancerous) cells form in the tissues of the kidney. It is among the ten most common cancers in both men and women, accounting for approximately 4-5% of all adult cancers. The most common type is renal cell carcinoma (RCC), which arises from the tubular structures of the kidney and accounts for about 90% of all kidney cancers. Other types include transitional cell carcinoma (urothelial carcinoma) of the renal pelvis, Wilms tumor (primarily in children), and renal sarcoma (rare). Kidney cancer is often discovered incidentally during imaging studies performed for other reasons, as early-stage kidney cancer typically causes no symptoms. When symptoms do occur, they may include blood in the urine (hematuria), a palpable mass in the flank or abdomen, flank pain, unexplained weight loss, fever, and fatigue. Advanced kidney cancer can spread (metastasize) to the lungs, bones, liver, brain, and lymph nodes. Treatment for kidney cancer depends on the stage, size, and location of the tumor, as well as the patient's overall health. Surgical removal (nephrectomy) is the primary treatment for localized kidney cancer. Options include partial nephrectomy (removing only the tumor and a margin of normal tissue) or radical nephrectomy (removing the entire kidney). For advanced or metastatic kidney cancer, targeted therapies (tyrosine kinase inhibitors, mTOR inhibitors), immunotherapy (checkpoint inhibitors), and combination therapies have significantly improved outcomes. Active surveillance may be appropriate for small renal masses in elderly or high-risk patients. A multidisciplinary team including urologists, nephrologists, oncologists, and radiologists provides optimal care.

Causes

1Genetic mutations in kidney cells leading to uncontrolled growth

2Von Hippel-Lindau (VHL) disease - hereditary kidney cancer syndrome

3Hereditary papillary renal cell carcinoma

4Birt-Hogg-Dube syndrome

5Tuberous sclerosis complex

6Chronic kidney disease and long-term dialysis

7Obesity

8Smoking (increases risk by 20-30%)

9High blood pressure

10Certain occupational exposures (cadmium, asbestos, petroleum products)

11Family history of kidney cancer

Symptoms to Watch For

⚠Blood in the urine (hematuria) - most common symptom

⚠Flank or abdominal pain

⚠Palpable mass in the abdomen or flank

⚠Unexplained weight loss

⚠Fatigue and malaise

⚠Fever (may be intermittent)

⚠Night sweats

⚠Bone pain (if metastasized to bones)

⚠Cough or shortness of breath (if metastasized to lungs)

⚠Swelling in legs or ankles (if tumor compresses veins)

Risk Factors

●Male sex (men are 2-3 times more likely to develop kidney cancer)
●Age over 50 years
●Smoking
●Obesity
●Hypertension
●Family history of kidney cancer
●Hereditary syndromes (VHL, hereditary papillary RCC, Birt-Hogg-Dube)
●Chronic kidney disease or long-term dialysis
●Exposure to certain chemicals (cadmium, asbestos)
●Advanced kidney disease

Diagnosis

1CT scan with contrast (primary imaging modality for kidney cancer detection and staging)

2Renal ultrasound (initial screening tool)

3MRI scan (for detailed evaluation of tumor extent and invasion)

4Urinalysis to detect hematuria

5Blood tests: complete blood count, liver function, kidney function, calcium

6Chest CT to evaluate for lung metastases

7Bone scan if bone metastases are suspected

8Biopsy (selective - not always required if imaging is characteristic)

9Metastatic workup: CT chest, abdomen, pelvis; bone scan; brain MRI

Treatment Options

Partial Nephrectomy

Surgical removal of the tumor and a margin of normal kidney tissue. Preferred for small renal masses (less than 4 cm) or when preserving kidney function is important. Can be performed laparoscopically or robotically.

Radical Nephrectomy

Surgical removal of the entire kidney, surrounding fat, and sometimes the adrenal gland. Used for larger tumors or when the kidney cannot be saved. Can be performed open, laparoscopically, or robotically.

Targeted Therapy

Tyrosine kinase inhibitors (sunitinib, pazopanib, cabozantinib) and mTOR inhibitors (everolimus, temsirolimus) target specific molecular pathways involved in kidney cancer growth. Used for advanced or metastatic RCC.

Immunotherapy

Checkpoint inhibitors (pembrolizumab, nivolumab, ipilimumab, avelumab) help the immune system recognize and attack cancer cells. Has significantly improved outcomes for advanced kidney cancer.

Combination Therapy

Combination of immunotherapy with targeted therapy (e.g., pembrolizumab + axitinib, nivolumab + cabozantinib) has shown superior outcomes compared to either approach alone in advanced RCC.

Active Surveillance

For small renal masses (less than 3 cm) in elderly or high-risk patients, close monitoring with periodic imaging may be appropriate instead of immediate surgery.

Radiation Therapy

Primarily used for palliation of bone metastases or brain metastases. Not typically a primary treatment for kidney cancer.

Prevention & Lifestyle Tips

✓Quit smoking

✓Maintain a healthy weight

✓Control blood pressure

✓Exercise regularly

✓Follow a balanced diet rich in fruits and vegetables

✓Limit alcohol consumption

✓Avoid exposure to carcinogens (cadmium, asbestos)

✓Get regular health checkups if at high risk

✓Genetic counseling for hereditary kidney cancer syndromes

✓Manage chronic kidney disease effectively

Dietary Recommendations

🥗Eat a diet rich in fruits and vegetables (antioxidants may be protective)

🥗Maintain a healthy weight

🥗Limit processed meats and red meat

🥗Choose whole grains over refined carbohydrates

🥗Stay well hydrated

🥗Limit alcohol consumption

🥗Reduce sodium intake

🥗Eat fatty fish for omega-3 fatty acids

🥗Limit sugary foods and beverages

🥗Consult a dietitian for personalized nutrition guidance during treatment

When to See a Nephrologist?

Consult a nephrologist or urologist if you notice blood in your urine, persistent flank or abdominal pain, a palpable mass in your abdomen, unexplained weight loss, or if you have risk factors for kidney cancer. Early detection significantly improves outcomes.

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Frequently Asked Questions

Is kidney cancer curable?

Early-stage kidney cancer (confined to the kidney) has a 5-year survival rate of approximately 93% with surgical treatment. Advanced or metastatic kidney cancer is harder to cure but can be managed with targeted therapies and immunotherapy, which have significantly improved survival in recent years.

What is the treatment for kidney cancer?

Treatment depends on the stage. Early-stage cancer is treated with surgery (partial or radical nephrectomy). Advanced kidney cancer is treated with targeted therapy (tyrosine kinase inhibitors), immunotherapy (checkpoint inhibitors), or combination therapy. Active surveillance may be appropriate for small tumors in high-risk patients.

What are the first signs of kidney cancer?

Early kidney cancer often has no symptoms. When symptoms occur, the most common are blood in the urine (hematuria), flank or abdominal pain, and a palpable mass in the abdomen. Other signs include unexplained weight loss, fatigue, and fever. Many kidney cancers are discovered incidentally during imaging for other conditions.

Can kidney cancer spread to other organs?

Yes, kidney cancer can metastasize to the lungs, bones, liver, brain, and lymph nodes. The risk of metastasis depends on the stage and grade of the tumor at diagnosis. Regular follow-up imaging is important after treatment to detect recurrence or metastasis early.

Expert Kidney Cancer Treatment

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