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AI PET Scan ReaderWhat FDG Avid and SUV Values Mean

Upload your PET/CT report or the scan images. About five minutes later you'll know what every hypermetabolic spot and SUV number means, what the scan ruled out, and what to ask your oncologist.

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Radiology report

Previously hypermetabolic mediastinal lymph nodes now demonstrate uptake below hepatic background (Deauville 2). Mildly FDG-avid focus in the right palatine tonsil, SUVmax 3.1, likely physiologic. No new hypermetabolic lesions.

01 · What did they find?Example

Worth monitoring. Bring it up at your next appointment

In plain English

The lymph nodes in the middle of your chest that lit up before treatment now take up less of the radioactive sugar than your liver does. On the Deauville scale that's a 2, which counts as a complete response. One tonsil shows a little uptake, and tonsils do that.

Detailed findings

  • Treated chest nodes now dimmer than the liver: Deauville 2
  • Right tonsil, SUVmax 3.1, most likely normal tonsil tissue
  • No new hypermetabolic spots
02 · What about my worry?

About your concern

Does “FDG avid” mean my lymphoma is back?

No. Deauville 2 means the nodes that were treated now take up less tracer than your liver does. That's the pattern radiologists call a complete metabolic response. The tonsil spot is in a place that normally lights up.

What this exam rules out

  • Spread to bone marrow — No FDG-avid spots in the bone marrow. The skeleton shows the even, low-level uptake of normal marrow.
  • New lymph node sites — No new hypermetabolic nodes above or below the diaphragm.
03 · What do I do next?

Questions to ask your doctor

  1. Does Deauville 2 count as remission? How often will I be scanned from here?
  2. Does the tonsil spot need another look, or is that just how tonsils show up?
04 · Still have a question?

Follow-up chat

I read online that an SUV over 2.5 means cancer. Mine is 3.1. Why isn't that a problem?

R

That 2.5 number comes from lung nodule studies and was never meant for the whole body. Radiologists read an SUV against your own liver and blood pool, and against where the spot is. Tonsils take up FDG all the time, so 3.1 there is expected.

Ask a follow-up about this report…

Swipe to see the full report

Illustrative example — not a real patient's report.See a complete sample report
  1. 01 · What did they find?

    Every finding in one sentence you can follow.

    The report says “mildly FDG-avid focus, SUVmax 3.1.” You get: a small spot in your right tonsil took up a little more tracer than usual, at a level that's normal for tonsils.

  2. 02 · What about my worry?

    It answers your question first, then says what the scan ruled out.

    Type in what you're afraid of before you upload. That's the first thing the report addresses. Then it lists what the scan looked for and didn't find.

  3. 03 · What do I do next?

    Questions for your oncologist, written from your report.

    Three to five questions pulled from your own findings, so you walk in knowing what to ask.

  4. 04 · Still have a question?

    Ask the chat. It has already read your report.

    Follow-up questions are answered with your report open. They're part of the report, at no extra charge.

Radiology report

Previously hypermetabolic mediastinal lymph nodes now demonstrate uptake below hepatic background (Deauville 2). Mildly FDG-avid focus in the right palatine tonsil, SUVmax 3.1, likely physiologic. No new hypermetabolic lesions.

Whole-body FDG PET/CT · report PDF
Example
Worth monitoring. Bring it up at your next appointment

Worth monitoring. Bring it up at your next appointment

In plain English

In plain English

The lymph nodes in the middle of your chest that lit up before treatment now take up less of the radioactive sugar than your liver does. On the Deauville scale that's a 2, which counts as a complete response. One tonsil shows a little uptake, and tonsils do that.

Detailed findings

Detailed findings

  • Treated chest nodes now dimmer than the liver: Deauville 2
  • Right tonsil, SUVmax 3.1, most likely normal tonsil tissue
  • No new hypermetabolic spots
About your concern

About your concern

Does “FDG avid” mean my lymphoma is back?

No. Deauville 2 means the nodes that were treated now take up less tracer than your liver does. That's the pattern radiologists call a complete metabolic response. The tonsil spot is in a place that normally lights up.

What this exam rules out

What this exam rules out

  • Spread to bone marrow — No FDG-avid spots in the bone marrow. The skeleton shows the even, low-level uptake of normal marrow.
  • New lymph node sites — No new hypermetabolic nodes above or below the diaphragm.
Questions to ask your doctor

Questions to ask your doctor

  1. Does Deauville 2 count as remission? How often will I be scanned from here?
  2. Does the tonsil spot need another look, or is that just how tonsils show up?
Follow-up chat

Follow-up chat

I read online that an SUV over 2.5 means cancer. Mine is 3.1. Why isn't that a problem?

R

That 2.5 number comes from lung nodule studies and was never meant for the whole body. Radiologists read an SUV against your own liver and blood pool, and against where the spot is. Tonsils take up FDG all the time, so 3.1 there is expected.

Ask a follow-up about this report…
Illustrative example — not a real patient's report.See a complete sample report

ReadingScan reads the PET/CT report you were handed and explains it back to you in plain English. Every hypermetabolic or FDG-avid site gets a sentence you can follow. Every SUV number is put next to what it's actually measured against, your liver and blood pool, instead of a cutoff from the internet. If your report has a Deauville score, a PSMA-RADS category, or an amyloid result, those get explained too. The report opens with the question you typed in, lists what the scan didn't find, and ends with questions for your oncologist. It doesn't diagnose, and it doesn't second-guess the physician who read your images. It gets you ready for the conversation.

What is an AI PET scan reader?

ReadingScan reads the PET/CT report you were handed and explains it back to you in plain English. Every hypermetabolic or FDG-avid site gets a sentence you can follow. Every SUV number is put next to what it's actually measured against, your liver and blood pool, instead of a cutoff from the internet. If your report has a Deauville score, a PSMA-RADS category, or an amyloid result, those get explained too. The report opens with the question you typed in, lists what the scan didn't find, and ends with questions for your oncologist. It doesn't diagnose, and it doesn't second-guess the physician who read your images. It gets you ready for the conversation.

What most AI readers leave out

Every PET scan reading answers the worry you arrived with, says what was ruled out, lets you keep asking, and can read an earlier report alongside this one.

“Should I be worried about this result?”

The report answers that first, in plain words, before it lists anything else.

It answers the worry you typed in

Tell us what you are afraid of before you upload. Your PET scan report opens by addressing that specific question instead of a generic summary.

  • Infection — looked for, not found
  • Fluid collection — none of significant volume

It tells you what was ruled out

Half the relief in a PET scan report is in what is absent. We list what the exam looked for and did not find, in the same plain language.

“What does ‘no acute abnormality’ actually mean?”

That nothing new or sudden was seen. It says nothing about long-standing changes.

You can keep asking

Follow-up questions about your own PET scan report, answered with your report in context. Included with the report, not billed separately.

March reportToday's report

Ask what changed between the two and the answer names the specific finding.

It can read your previous report too

Attach an earlier report and ask what changed since then. Included with your PET scan report rather than sold as an add-on.

Get My Report

Your first PET scan reading is free — no credit card.

Which PET scan did you have?

Each type has its own vocabulary. The reader knows all four.

  • FDG PET/CT for cancer staging

    The whole-body scan most people mean when they say “PET scan.” A radioactive sugar shows where cells are burning the most energy. The report lists each FDG-avid spot with its SUVmax and says whether it reads as tumor, inflammation, or normal tissue.

    What each SUVmax means next to your liver and blood pool · Hypermetabolic lymph nodes vs. reactive ones · Normal uptake in the brain, heart, bladder, and brown fat

  • Treatment response PET for lymphoma

    The interim or end-of-treatment scan, read side by side with your baseline. The Deauville score (1 to 5) says whether the disease has stopped taking up tracer, and the report separates leftover disease from post-chemo inflammation.

    Deauville 1 to 5, and which scores count as complete response · Residual uptake vs. inflammation after chemo or radiation · New spots vs. changes at a treated site

  • PSMA PET/CT for prostate cancer

    A tracer that sticks to prostate cancer cells, used at diagnosis or when PSA starts rising after treatment. The report describes PSMA-avid sites in the prostate bed, lymph nodes, and bone, and flags the normal uptake in salivary glands, kidneys, liver, and bowel.

    PSMA-avid sites and PSMA-RADS categories · Lymph node and bone spread · Normal PSMA uptake that isn't cancer

  • Brain PET: amyloid and FDG

    Amyloid PET reports whether amyloid plaque is present, the test that gates lecanemab and donanemab. FDG brain PET maps which regions are using less glucose than expected, a pattern neurologists use to sort types of dementia.

    Amyloid positive vs. negative, and what that changes · Regional hypometabolism patterns · What to ask before starting anti-amyloid treatment

AI explanation vs. a radiologist's second opinion

They do different jobs. ReadingScan explains the report you already have. A nuclear medicine radiologist re-reads your images and can change the diagnosis.

What is being comparedReadingScan (AI explanation)Radiologist second opinion
TurnaroundAbout 5 minutesUsually 1 to 3 business days
CostFirst analysis free, then from $14Often $100 or more
What you getYour existing PET findings in plain English: every FDG-avid site, SUV number, and scoreA new official read that can confirm or overturn the original
Best forUnderstanding your report before or after you see your oncologistRestaging, deciding whether to biopsy a new hypermetabolic spot, or changing treatment

If this PET is about to change your treatment, get both. Use ReadingScan today to understand the words, and ask your oncologist about a formal second read of the images.

Before you upload

Six things you can check

Facts about what this service is and how it handles your scan, as of September 2026.

  • Patients from 56 countries
  • 300+ reports read since April 2026
  • Encrypted with TLS in transit and AES-256 at rest
  • Delete your data anytime — no email, no waiting period
  • Every report tells you what to confirm with your doctor
  • Can't read your file? Refunded automatically

Your first analysis is free. A full report is $14.

The free analysis gives you an urgency check, the headline conclusion and the full list of findings. The full report adds what each finding means, what the exam ruled out, what to do next, and the questions to bring to your doctor.

See full pricingRead our privacy policy

Frequently Asked Questions

The PET scan terms people search for most, answered the way a doctor would if they had the time

Go deeperHow to read a PET scan report: uptake, SUV and what a bright spot meansWhat your Deauville score means on a lymphoma PET reportPSMA PET/CT for prostate cancer, explained for patientsAmyloid PET scan and ARIA, explained

Minutes, not months.

Upload the image or the report PDF you were handed. Your first analysis is free.

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Educational only. Not a substitute for professional medical care.

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