What does stable disease mean on my Pancreatic Cancer scan results

Understanding "Stable Disease" in Your Pancreatic Cancer Scan Results

Great question—this is an important term to understand. Let me break down what "stable disease" means and why it matters for your care.

What Stable Disease Means

Stable disease means your tumor(s) have not significantly grown or shrunk since your last scan. In other words, the cancer appears to be staying about the same size—it's not getting worse, but it's also not improving.

Here's how doctors typically measure this:

• Stable disease = your tumor size has changed by less than 20% (either growth or shrinkage)
• This is different from a partial response (tumor shrunk by 30% or more) or progression (tumor grew by 20% or more)

Why This Matters

According to the NCCN Guidelines for Pancreatic Cancer, stable disease is actually considered a form of disease control—meaning the treatment is working to prevent the cancer from advancing, even if it's not shrinking the tumor.

This is particularly important in pancreatic cancer because:

• Stopping cancer growth is a meaningful goal, especially in advanced disease
• Stable disease can buy time and maintain your quality of life
• It may allow your medical team to continue current treatment or adjust the plan

Important Context About CA 19-9

One thing to note: According to NCCN Guidelines, CA 19-9 elevation alone (without other evidence of disease on imaging) is not a clear indication for treatment changes. So if your scans show stable disease but your CA 19-9 marker is rising, discuss this with your doctor—it doesn't automatically mean your cancer is progressing.

Questions to Ask Your Oncologist

Since you have stable disease, these questions can help you understand your specific situation:

1. "How long has my disease been stable, and what does that tell us about how my current treatment is working?"

2. "Are there any concerning changes in the tumor that aren't captured by the size measurement alone?" (For example, location changes or involvement of blood vessels)

3. "What is our plan if the disease remains stable—do we continue current treatment, or are there other options we should consider?"

4. "Should we be monitoring anything else besides tumor size on future scans?" (Such as new areas of spread or changes in lymph nodes)

5. "Are there any clinical trials I might be eligible for that could improve on stable disease?" (This is especially relevant given emerging immunotherapy and targeted therapy options)

The Bigger Picture

According to research highlighted by Let's Win Pancreatic Cancer, combination therapies—especially those combining chemotherapy with immunotherapy or targeted therapies—are showing promise in pancreatic cancer. Even if you currently have stable disease, your doctor may discuss whether you're a candidate for:

• Molecular profiling of your tumor (to identify targeted therapy options)
• Clinical trials testing newer approaches
• Adjustments to your current regimen

The key point: Stable disease is not "no progress"—it's actually a positive response showing your treatment is controlling the cancer.

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This information is for educational purposes only. Always consult your healthcare team for personalized medical advice and decisions.