What is a HYNIC-TOC Scan?
A HYNIC-TOC Scan is a special imaging test used to detect neuroendocrine tumors (NETs). These tumors can grow in the intestines, pancreas, or lungs. The scan uses a small amount of radioactive tracer that targets specific tumor cells.
It helps your doctor:
- Detect NETs
- Plan treatment
- Monitor progress
- Decide if targeted therapies like PRRT will help
The scan is painless and safe.
Why You May Need This Scan
Doctors usually recommend this scan if:
- You've been diagnosed with or suspected of having a neuroendocrine tumor
- You're being considered for PRRT (a special targeted therapy)
- Your doctor needs more detail than other scans can offer
Before the Scan – How to Prepare
- No heavy meals for 4–6 hours before the scan (you may drink water)
- Continue regular medicines unless your doctor says otherwise
- If you're on somatostatin analogs (like octreotide), ask your doctor when to stop
- Pregnant or breastfeeding? Inform us in advance
- Wear loose, metal-free clothes
- Drink water before and after the scan
What to Bring With You
- Doctor's prescription
- Any recent scan reports (CT, MRI, blood tests)
- A list of your medications and supplements
- Previous treatments or surgery notes, if any
- A bottle of water
- Home-prepared food or snacks for after the scan
- Only one friend or family member should accompany you
How Long Does It Take?
The whole process takes about 4 to 5 hours:
- You'll receive a small injection of the tracer
- You rest for 3 hours while the tracer spreads in your body
- Then we take scan images — this takes around 20 minutes
- In some cases, we may ask you to return the next day for a second scan
What Happens During the Scan?
- After your arrival, we'll check your prescription
- A nurse will insert a small cannula (thin tube) in your vein
- You will get the tracer injection
- After resting, you'll lie down for the scan — no pain, just stay still
- Our nuclear medicine specialist will check the images
- You may go home after a short observation
After the Scan – What You Should Know
- You can eat, drink, and take medicines as usual
- Avoid close contact with pregnant women and children for 12–24 hours
- Drink lots of water — it helps flush the tracer out
- You may go back to your normal routine the same day
- Your doctor will receive the results in a few working days
Why Choose Mumbai Diagnostic Centre?
- We use advanced SPECT/CT for high-quality, clear images
- Our expert team has experience with complex cases
- Friendly staff to support you throughout the process
- Safety and patient comfort are our priority
Let us help you take the next step in your diagnosis or treatment journey — with care, comfort, and clarity.