Top
10
Doctor insights on: What Does Hypometabolic Mean On A Pet Scan

Share
1

1
What does "hypermetabolic" mean on the report of a pet scan?

What does "hypermetabolic" mean on the report of a pet scan?

Takes up tracer: Pet scans work by imaging a tracer that is a sugar analogue. Since tissue/cells that are more "metabolically active" take up more glucose tracer, we refer to that as "hypermetabolic". Diagnostically, this can mean a number of things and depends on the context. Inflammatory cells and malignant cells (cancer) are typically hypermetabolic. One would have to look at the context and medical history. ...Read more

See 2 more doctor answers
Dr. Guido Davidzon
279 doctors shared insights

Pet Scan (Definition)

Pet scans most often use a radioactive form of glucose, the energy source for most of the cells in our bodies. The pet scanner can detect and measure how much of the radioactive glucose analog, f-18 fdg, is in a particular organ or region. The areas using more glucose are hyper metabolic and generally more worrisome. Our brains and sometimes hearts prefer glucose as food, making ...Read more


2

2
Could you tell me what this print out of a pet scan results means ?

Could you tell me what this print out of a pet scan results means ?

Discuss with doctor.: It is best to discuss your pet scan results with your physician so that you can be sure that you have a detailed and correct understanding of the scenario. If you have any specific questions, be sure to have them clarified. Without the results, it is difficult to answer your question. Hope this helps. ...Read more

3

3
On PET scan the phrase "central photopenia suggesting necrosis" what does this mean?

On PET scan the phrase "central photopenia suggesting necrosis" what does this mean?

Usually necrosis: PET scan uses F18 FDG (a glucose metabolite) to localize active metabolic processes such as tumors. The uptake of the radiopharmaceutical is considered hot when increased over normal tissues or background Sometimes central portion of tumor is photogenic or cold reflecting necrosis or death of some of tumor. Necrosis can be related to chemotherapy or on presentation when tumor outgrows blood supply ...Read more

4

4
When a pet scan report says "no other evidence of metastatic disease." does that mean there was evidence of it somewhere in the body, but nowhere else?

When a pet scan report says "no other evidence of metastatic disease." does that mean there was evidence of it somewhere in the body, but nowhere else?

Metastatic disease: Pet scans are imaging studies that look for subtle signs of increase metabolism in the body. Cancer cells have an increased metabolism compared to regular cells. If there are no spots of increased metabolism beyond where the cancer started then there are no signs of metastatic disease. ...Read more

See 1 more doctor answer
5

5
What can a lit up pet scan in left subpectoral area mean in lymph node . ?

What can a lit up pet scan in left subpectoral  area mean in lymph node . ?

Several Things: A positive pet scan does not always equate with malignancy. The positive scan reflects increased metabolic activity. Causes of false positive exams include infectious diseases (mycobacterial (like tb), fungal, bacterial infection), sarcoidosis, radiation pneumonitis and post-operative surgical conditions have shown intense uptake on pet scan. Good luck! ...Read more

See 2 more doctor answers
7

7
On a pet scan does a lower SUV uptake meAn less aggressive cancer ? The SUV uptake was 5.2,

On a pet scan does a lower SUV uptake meAn less aggressive cancer ? The SUV uptake was 5.2,

No: SUV has no bearing on the aggressiveness of the cancer. It is a relative measure of the glucose metabolism. In fact, some very aggressive tumors have no FDG uptake at all. Some benign conditions like infection can have high uptake. The standard uptake value depends on many factors like patient body size and serum glucose level and the normal uptake in the tissue surrounding the target lesion. ...Read more

8

8
Not long ago I had a pet scan done, one lympnode lit up, it was light. I want to know if that still means cancer.?

Not long ago I had a pet scan done, one lympnode lit up, it was light. I want to know if that still means cancer.?

Possibly: The purpose of a PET scan is to evaluate the extent of a cancerous process and see if before treatment there are several sites to be concerned about. After treatment to see if there is residual disease that may not have responded properly. If a node lights up it may suggest that there is still remaining disease. ...Read more

9

9
Is it better that the SUV Max on a pet scan is lower than higher? Does this mean the cancer Is less aggressive and less active What is the highest it can be !

SUV: SUV refers to amount of metabolic activity (glucose uptake) and often corresponds to tumor grade. Lower is usually better. A higher tumor grade usually has higher SUV. SUVs can be very high. There is no exact cutoff. ...Read more

See 1 more doctor answer
10

10
What does a cancer free pet scan show? When a pet scan shows that a person is cancer free, does that really mean they're done with cancer? Is it cured? Are there any general statistics for a person who had cancer, but a pet scan later showed that the canc

What does a cancer free pet scan show? When a pet scan shows that a person is cancer free, does that really mean they're done with cancer? Is it cured? Are there any general statistics for a person who had cancer, but a pet scan later showed that the canc

PET : Pet scans are used for diagnosis, staging, and restaging of certain kinds of cancers such as lung, colorectal, esophageal, and head and neck cancers, and for monitoring response to therapy in breast cancer. Different kinds of cancers behave differently, and there is no guarantee that a given cancer is completely "cured, " even following complete remission. In general, evidence of a complete remission on a pet scan is a very favorable prognostic sign, and indicates that treatment was successful. Followup pet scans are still performed at regular intervals, often for the patient's lifetime, in order to monitor for any possible recurrence that might require new treatment. In general, if follow-up pet scans continue to show no evidence of disease over a period of many years, the likelihood of recurrence is low. ...Read more

See 2 more doctor answers