What does indeterminate mean on my Prostate Cancer scan

Understanding "Indeterminate" on Your Prostate Cancer Scan

"Indeterminate" is a radiologist's way of saying the finding is unclear or ambiguous — it doesn't fit neatly into a "definitely cancer" or "definitely normal" category. Think of it as a gray area rather than a clear yes or no.

What This Means in Practice

When a radiologist marks something as indeterminate, they're essentially saying:

• The spot or area could be cancer, but it could also be benign (non-cancerous)
• There isn't enough visual evidence to make a definitive call
• More information is needed to clarify what's actually there

This is actually quite common in cancer imaging because some benign conditions (inflammation, scar tissue, benign growths) can look similar to cancer on scans.

What Typically Happens Next

Your oncology team will usually recommend one of these approaches:

1. Follow-up imaging — Repeat the scan in a few weeks or months to see if the finding changes (growing lesions are more suspicious for cancer)
2. Different imaging modality — Using a different type of scan that might provide clearer information
3. Biopsy — Taking a tissue sample to definitively determine what the spot is
4. Close monitoring — Watching it carefully with regular scans rather than acting immediately

Important Context for Prostate Cancer Specifically

According to the CancerPatientLab webinar on advanced prostate cancer, imaging interpretation can be particularly nuanced in prostate cancer. The webinar discusses how doctors use multiple imaging approaches — including PSMA scans (which specifically target prostate cancer cells) and FDG-PET scans (which show areas of high glucose activity) — to get a clearer picture when standard imaging is unclear.

The webinar notes that sometimes scans can look concerning while PSA levels tell a different story, or vice versa. This is why your oncology team looks at the complete clinical picture rather than relying on any single test.

Questions to Ask Your Doctor

Since you have an indeterminate finding, these questions will help you understand your specific situation:

1. "What exactly is indeterminate about this finding? What could it be?"
2. "Do you recommend follow-up imaging, a biopsy, or monitoring? Why?"
3. "How soon should we repeat imaging or take the next step?"
4. "How does this finding affect my current treatment plan?"
5. "Are there other imaging tests (like PSMA-PET or FDG-PET) that might clarify this?"

The Bottom Line

Indeterminate findings are frustrating because they create uncertainty, but they're also common and manageable. Your care team has protocols for handling these situations, and the goal is to gather enough information to make the best treatment decisions for your specific case.

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