Expert Care for Kidney Cancer

Kidney Cancer: Symptoms, Causes, Diagnosis, and Treatment | AIROC Hospitals

About Kidney Cancer – Overview and Types

Kidney cancer develops when cells within the kidney grow and multiply abnormally, forming a tumor. The kidneys are two bean-shaped organs responsible for filtering waste and excess fluid from the blood. At AIROC Hospitals, our urologic oncology specialists provide advanced diagnostic and treatment options to manage kidney cancer effectively, with a strong focus on preserving kidney function whenever possible.

Kidney cancer is often discovered incidentally during imaging performed for unrelated reasons, as early-stage tumors frequently cause no symptoms. When caught at an early stage, kidney cancer has a favorable outlook, which makes awareness and timely evaluation important.

Types of Kidney Cancer

Kidney cancer is classified based on the type of cell in which it originates:

• Renal Cell Carcinoma (RCC) – The most common type of kidney cancer in adults, accounting for the vast majority of cases, with several subtypes including clear cell, papillary, and chromophobe carcinoma.
• Transitional Cell Carcinoma (Urothelial Carcinoma) – Begins in the lining of the renal pelvis, where the kidney connects to the ureter, and behaves similarly to bladder cancer.
• Wilms Tumor – A rare form of kidney cancer that primarily affects young children.
• Renal Sarcoma – A rare type arising from the connective tissue of the kidney.

Identifying the exact type and subtype of kidney cancer helps our specialists at AIROC Hospitals determine the most appropriate and effective treatment approach.

 

Symptoms and Causes

Common Symptoms of Kidney Cancer

Early-stage kidney cancer often causes no noticeable symptoms, but as the tumor grows, signs may include:

• Blood in the urine (hematuria), which may appear pink, red, or cola-colored
• Persistent pain or a dull ache in the side or lower back
• A palpable lump or mass in the abdomen or side
• Unexplained weight loss
• Fatigue
• Loss of appetite
• Intermittent fever not related to infection
• Swelling in the ankles or legs
• High blood pressure

Because these symptoms can also be caused by less serious conditions, any persistent or unexplained symptoms — particularly blood in the urine — should be evaluated promptly by a specialist.

Causes and Risk Factors

The exact cause of kidney cancer is not fully understood, but several risk factors have been identified:

• Smoking: One of the most significant risk factors, roughly doubling the risk of developing kidney cancer.
• Obesity: Associated with hormonal changes that may increase kidney cancer risk.
• High Blood Pressure (Hypertension): Long-standing high blood pressure is linked to increased risk.
• Family History: A family history of kidney cancer, particularly in a parent or sibling, raises individual risk.
• Genetic Conditions: Inherited syndromes such as von Hippel-Lindau disease significantly increase susceptibility.
• Chronic Kidney Disease and Dialysis: Long-term kidney disease, especially in patients on dialysis, is associated with higher risk.
• Occupational Exposures: Long-term exposure to certain chemicals, such as trichloroethylene, has been linked to increased risk.
• Age and Sex: More common in adults over 50 and occurs more frequently in men than women.

Understanding these risk factors allows our team at AIROC Hospitals to guide appropriate screening, particularly for individuals with a strong family history or known genetic predisposition.

 

Diagnosis and Treatment

How Kidney Cancer Is Diagnosed

At AIROC Hospitals, we use a range of imaging and laboratory techniques to accurately diagnose and stage kidney cancer:

• Ultrasound: Often the first imaging test used to detect abnormal kidney masses.
• CT and MRI Scans: Provide detailed images to determine tumor size, location, and whether the cancer has spread to nearby structures or organs.
• Urine Tests: Used to check for blood or abnormal cells in the urine.
• Blood Tests: Assess overall kidney function and general health.
• Biopsy: In select cases, a tissue sample may be taken to confirm the diagnosis, though many kidney tumors are diagnosed and treated based on imaging alone.
• Bone Scan or Chest Imaging: Used if there is concern the cancer may have spread beyond the kidney.

Treatment Options at AIROC Hospitals

Treatment for kidney cancer depends on the tumor's size, stage, and location, and may include:

• Surgery: The primary treatment for most kidney cancers, ranging from partial nephrectomy (removing only the tumor and surrounding tissue) to radical nephrectomy (removing the entire kidney), often performed using minimally invasive techniques.
• Active Surveillance: For very small, slow-growing tumors, particularly in older patients, careful monitoring may be recommended instead of immediate treatment.
• Ablation Therapy: Techniques such as cryoablation or radiofrequency ablation can destroy small tumors without the need for major surgery.
• Targeted Therapy: Drugs designed to block specific pathways that support tumor growth, commonly used for advanced or metastatic kidney cancer.
• Immunotherapy: Helps the immune system recognize and attack cancer cells, and has become an important option for advanced kidney cancer.
• Radiation Therapy: Less commonly used as a primary treatment but may help relieve symptoms in advanced cases.

Our multidisciplinary team at AIROC Hospitals — including urologic oncologists, radiologists, and medical oncologists — works together to design a treatment plan that balances effective cancer control with preservation of kidney function.

 

Prevention and Risk Factors

While not all cases of kidney cancer can be prevented, several lifestyle measures can help lower risk and support early detection:

• Avoiding Tobacco: Not smoking or quitting tobacco use significantly reduces risk.
• Maintaining a Healthy Weight: Reducing obesity-related risk factors can help lower the likelihood of developing kidney cancer.
• Managing Blood Pressure: Keeping high blood pressure well-controlled supports overall kidney health.
• Limiting Exposure to Harmful Chemicals: Using appropriate protective measures in occupational settings with known risk substances.
• Regular Check-Ups for High-Risk Individuals: Those with a family history of kidney cancer or related genetic conditions may benefit from periodic imaging and monitoring.
• Prompt Evaluation of Symptoms: Blood in the urine or persistent back or side pain should be assessed by a specialist without delay.

At AIROC Hospitals, we encourage individuals with known risk factors to maintain regular check-ups and seek prompt evaluation of unusual symptoms, as early detection significantly improves the outlook for kidney cancer treatment.

 

This content is intended for informational purposes only and does not substitute professional medical advice. Please consult a specialist at AIROC Hospitals for personalized diagnosis and treatment recommendations.