Wilms Tumor Surgery

Treatment Process, Surgical Procedure, Recovery, and Outcomes

Wilms tumor, also known as nephroblastoma, is a rare type of kidney cancer that primarily develops during early childhood. It originates in the kidney and can grow rapidly, sometimes spreading to nearby tissues or distant organs if not treated promptly.

Surgical removal of the tumor is one of the most important steps in treating Wilms tumor. In most cases, surgery is combined with chemotherapy and, when necessary, radiation therapy to achieve the best possible outcome.

With modern pediatric oncology treatments, Wilms tumor is considered one of the most treatable childhood cancers when diagnosed and managed appropriately.

What Is Wilms Tumor?

Wilms tumor is a cancer that forms in the kidneys, the organs responsible for filtering waste products from the blood and producing urine.

Most cases affect only one kidney, although in rare situations both kidneys may be involved.

The condition develops when immature kidney cells begin to grow uncontrollably and form a tumor. These abnormal cells can interfere with normal kidney function and may spread if left untreated.

According to the American Cancer Society, Wilms tumor represents about 5% of all childhood cancers, and early treatment leads to very favorable outcomes in most cases.

Symptoms That May Lead to Diagnosis

Wilms tumor is often detected after caregivers notice unusual abdominal swelling or a mass in the abdomen.

Common signs may include:

• Abdominal swelling or a palpable lump

• Abdominal pain or discomfort

• Blood in the urine

• Fever

• High blood pressure

• Loss of appetite

Diagnosis is typically confirmed through imaging tests and laboratory evaluations.

Diagnostic Tests Before Surgery

Before planning surgery, doctors perform several tests to determine the tumor’s size, location, and stage.

These may include:

• Ultrasound imaging to detect the kidney mass

• CT scan or MRI to evaluate the tumor and nearby structures

• Chest imaging to check for possible spread to the lungs

• Blood and urine tests

• Biopsy in selected cases

These assessments help determine the safest surgical approach and whether chemotherapy should be given before surgery.

Wilms Tumor Surgery Procedure

The main surgical treatment for Wilms tumor is called nephrectomy, which involves removing the affected kidney and tumor.

Radical nephrectomy

The most common procedure is radical nephrectomy, where the surgeon removes:

• The kidney containing the tumor

• Surrounding fatty tissue

• Nearby lymph nodes

This helps ensure that all cancerous tissue is removed.

Partial nephrectomy

In selected cases, surgeons may perform partial nephrectomy, removing only the tumor while preserving as much healthy kidney tissue as possible.

This approach may be considered when both kidneys are affected.

Chemotherapy and Surgery

Treatment strategies may differ depending on the tumor stage.

In some cases, chemotherapy is given before surgery to shrink the tumor and make removal safer.

In other situations, surgery is performed first, followed by chemotherapy to eliminate any remaining cancer cells.

The treatment plan is determined by a multidisciplinary oncology team.

Recovery After Wilms Tumor Surgery

Recovery varies depending on the extent of the surgery and overall health.

Hospital stay

Patients typically remain in the hospital for about one week following surgery.

Postoperative care

During recovery, medical teams focus on:

• Pain control

• Preventing infection

• Monitoring kidney function

• Supporting nutrition and hydration

Gradual return to normal daily activities is expected over several weeks.

Risks and Possible Complications

As with any major surgery, Wilms tumor surgery carries potential risks.

These may include:

• Bleeding

• Infection

• Injury to nearby organs

• Postoperative pain

• Rarely, kidney function complications

When surgery is performed in experienced pediatric oncology centers, the risk of serious complications is generally low.

Survival Rates and Treatment Outcomes

Wilms tumor has one of the highest survival rates among childhood cancers.

Outcomes depend on several factors:

• Tumor stage

• Tumor biology

• Whether the cancer has spread

• Response to treatment

For many patients, long-term survival rates exceed 85–90%, particularly when the disease is detected early.

Continuous advances in oncology treatment protocols have further improved these outcomes.

Life After Treatment

After successful treatment, long-term follow-up is essential to monitor overall health and kidney function.

Follow-up care typically includes:

• Periodic imaging studies

• Blood tests

• Monitoring growth and development

• Surveillance for possible recurrence

With appropriate treatment and follow-up care, many patients go on to live healthy and active lives.

Procedures in Pediatric Hematology & Oncology

Bone marrow transplant (BMT), stem cell transplantation, pediatric tumor resection surgery, neuroblastoma surgery, Wilms tumor surgery, pediatric brain tumor surgery, pediatric solid tumor surgery, lymph node biopsy, central venous catheter (port) placement, splenectomy, liver tumor surgery, soft tissue sarcoma surgery.