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Doctor insights on: Had A Pet Scan Shows A Carcinoid In Cecum Does It Mean Surgery

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Is this routine? A pet scan 4months after a thoracatomy for a lung carcinoid?

Is this routine? A pet scan 4months after a thoracatomy for a lung carcinoid?

Not uncommon: Some sort of surveillance is recommended after intervention for cancer. A pet/ct at 4 months after resection of a primary lung carcinoid is perfectly reasonable. ...Read more

Dr. Guido Davidzon
292 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


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5cm Pleural mass in right lung. Pet scan show not cancer...is surgery still necessary and what are the risks. Thanks?

5cm Pleural mass in right lung. Pet scan show not cancer...is surgery still necessary and what are the risks. Thanks?

Lung mass: Something is missing! There must have been symptoms that led to a pet scan. Unless a biopsy was performed how could your doctor simply say that there was no cancer? I hope there was indeed no cancer but the symptoms that led to the pet scan should be a cause for biopsy. Do the doctors have any idea what the pleural mass might be? Please keep me informed. ...Read more

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Life expectancy for lung cancer gone to brain. Pet scan shows no other cancer now, only 1 tumor on brain. Surgery and whole brsin radiation will be?

Life expectancy for lung cancer gone to brain. Pet scan shows no other cancer now, only 1 tumor on brain. Surgery and whole brsin radiation will be?

"oligometastatic": Patients with a single brain tumor as the only site of metastatic disease are called "oligometastatic." the chance of cure, though small, is real. Every cancer specialist has a few such patients. I would strongly recommend aggressive treatment, including either radiosurgery (cyberknife, gammaknife, etc.) to the brain or surgical resection, and again stereotactic or chemoradiation to the lung. ...Read more

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After cancer surgery I had 2 clear pet scans. Nw after 5 yrs the pet scan is abnormal. Possible causes?

After cancer surgery I had 2 clear pet scans. Nw after 5 yrs the pet scan is abnormal. Possible causes?

Not enough info...: It is possible to have an abnormal scan at 5 years but I do not know enough about your history and what was abnormal in this scan. There are many sources of false positive on pet scan but without seeing your images or reports and without your exact history it is difficult to determine what the status is. ...Read more

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My friend has a large spot on his kidney. He is scheduled for surgery w/o having a pet scan first. Is this wise?

My friend has a large spot on his kidney. He is scheduled for surgery w/o having a pet scan first. Is this wise?

Not sure what: The "spot" could be without more details, but if it is a suspicious kidney mass it needs a specific diagnosis in order to determine the proper work up and treatment...needle biopsies are not always sufficient in the case of kidney tumors, so surgery may be indicated. ...Read more

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Following cancer surgery I had 2 clear pet scans. Now after 5 yrs the pet scan is abnormal. What can be the reason, what to do?

Following cancer surgery I had 2 clear pet scans. Now after 5 yrs the pet scan is abnormal. What can be the reason, what to do?

Abnormal PET....: It is difficult to say without knowing your exact history. What type of cancer was it? Was the pet performed at the same institution and interpreted by the same person? Abnormal pet could mean recurrence but without the report it is difficult to say. There are many causes of false positive on pet. Please look further into this calmly and discuss with your doctor to understand the details. ...Read more

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Can colon cancer spread to a aortocaval node? This was note few months after surgery by a pet scan.

Can colon cancer spread to a aortocaval node? This was note few months after surgery by a pet scan.

Yes: Colon cancer can indeed spread to that lymph node, as well as to others. Also, PET scans can give false positive results. Confer with your doctor. ...Read more

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Pet scan 3-4mm, suv value of 1, no further evidence of disease, before surgery melanoma 0.8 mm negative sln, blood samples normal, no other signs?

Pet scan 3-4mm, suv value of 1, no further evidence of disease, before surgery melanoma 0.8 mm negative sln, blood samples normal, no other signs?

Melanoma: You now have a baseline to be monitored by you and your oncologist will follow you for the rest of your life the term ned means no evidence of disease not no cancer therefore routine monitoring is your best protection. ...Read more

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Am asking for a PET scan post chemo cycle since the earlier CT never picked up the larger tumor at all. Surgery did. (?)

Am asking for a PET scan post chemo cycle since the earlier CT never picked up the larger tumor at all. Surgery did. (?)

PET scan is better: A pet scan can pick up tumors which are not seen with other tests. But even PET scan requires cancer size to be about 1cm or larger. It will not pick up tiny tumor (Microscopic cells) ...Read more

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I'm 486 lbs. Bariatric surgery on 10/21 and the cardiologist wants me to get a pet scan. I live in nj and need a scanner that can accommodate my weight

I'm 486 lbs. Bariatric surgery on 10/21 and the cardiologist wants me to get a pet scan. I live in nj and need a scanner that can accommodate my weight

Will be a problem: First speak to your doctors, for alternative tests, the reason for pet scan, are they suspecting a malignancy? Or test related to your heart? . Get in touch with large diagnostic centers, some places may accommodate larger people. Good luck. ...Read more

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Mass in my lung 5cm. Biopsy sample was insufficient. Who can help me to do pet scan...till now they not sure cancer or not. And what risks of surgery?

Mass in my lung 5cm. Biopsy sample was insufficient. Who can help me to do pet scan...till now they not sure cancer or not. And what risks of surgery?

Any good doctor can: If you have a growth in the lung, you need to be under the care of an internist or an oncologist. What is the specialty of your doctor whom you are seeing now (who ordered your biopsy?). You need to tell us details of your history. Any medical or surgical doctor can order the relevant tests including CT scan or PET scan, but you must go to a specialist if possible. ...Read more

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Thyroid from 4cm to 7.1cm. Uptake 20.5%/34%. Fnb significant # multinucleated giant cells with positive pet scan prior to surgery 4 breast ca surgery?

Goiter: A goiter, size increased from 4 cm to 7.1 cm? Suspicious needle biopsy and positive pet scan? Possible breast cancer? You need consult with surgery and endocrinology. More information is needed, but likely you will benefit from thyroid surgery. The pathology exam will make diagnosis, and cancer is a concern. This is complicated, so take a friend with you for your consult. ...Read more

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If I get radiation and chemotherapy for my esophageal cancer and have clean CT and pet scans, will I still need surgery?

If I get radiation and chemotherapy for my esophageal cancer and have clean CT and pet scans, will I still need surgery?

Maybe: Therapy for esophageal cancer is dependent on the stage. There are IV relative stages. In the physically fit patient, the upfront therapy for stage I and iia is surgery. For stages iib and iii, the therapy of choice is chemoradiation followed by surgery. For stage iv, chemotherapy +/- radiation and no surgery. That being said 15-20% have complete eradication of tumor after chemoradiation. ...Read more

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Pet scan had slight activity in abdominal lymph node & tiny spot on liver. Could this be left over inflammation from diep surgery in december? Tm 52.

Pet scan had slight activity in abdominal lymph node & tiny spot on liver. Could this be left over inflammation from diep surgery in december? Tm 52.

Hard to interpret: Both the liver and the lymph nodes will react to many things. Reactions to a small viral infection to surgery etc. The mild reading described is not definite for any particular cause. Follow up exams and studies will help decide it's meaning. ...Read more

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Should the lung carcinoid surgery have gone ahead if a few hours before the doc found 4 cysts on the liver. Ct scan?

Should the lung carcinoid surgery have gone ahead if a few hours before the doc found 4 cysts on the liver. Ct scan?

Probably completely: Appropriate. Gut carcinoids are always in the liver if they go to the lung. If there was an indication for surgical management of the lung disease then the liver findings would not change that plan. ...Read more

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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

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Post op seminoma, in r testicle. Pet scan done for suspecious nodes. Pet scan result shows negative for any abnormalility. This means no seminoma?

Post op seminoma, in r testicle. Pet scan done for suspecious nodes. Pet scan result shows negative for any abnormalility. This means no seminoma?

Surveillance: A negative pet scan means there is no accumulation of cancer cells large enough to be discernible by the pet scanner. There is a resolution limit of about 7mm in size to be seen, some are better now. I am not trying to scare you, but your doctor I'm sure will continue to caution you and continue surveillance for a period of time safe to say you are cancer-free. ...Read more

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Since pet scan shows only one area of lung which is very suspicious for malignancy, does that mean if it's cancer that it hasn't metastasis? Thank you

Since pet scan shows only one area of lung which is very suspicious for malignancy, does that mean if it's cancer that it hasn't metastasis? Thank you

Yes you are right: A PET scan will pick up Cancer at all sites. It looks like that your Cancer (if it is confirmed with a biopsy) is still localized to the lung alone (No metastases). ...Read more

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Brain mass? If a pet scan slide of the head and neck that shows the scalp i.E. The brain, what do three circles mean with ctac 3.75 thick next to it mean as an annotation. Is this a brain slide of 3 d dimensions or three separate tumors? I suppose you kn

I: I suggest you make an appointment with the doctor who ordered the pet scan to review the images and adults with him or her. Ctac stands for "attenuation correction ct". This is ct, or computed tomography part of the combined pet/ct scan. It is what show the anatomy meaning all the organs and structures in the body. The 3.75 just means how thick the cat scan slices are. Unless a special kind of pet/ct dcan was done specifically to evaluate for a brain tumor, it is actually quite rare for brain tumors to show up on regular pet scans and they are usually not easily seen on the ct component of the scan alone, especially if no IV contrast dye aw given in addition to the pet scan sugar tracer. ...Read more

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My father has metastatic melanoma, 1 lymph node involvement. Pet scan and CT scan shows no other metastasis at this time. Does this mean he is cured?

My father has metastatic melanoma, 1 lymph node involvement. Pet scan and CT scan shows no other metastasis at this time. Does this mean he is cured?

Melanoma...: Melanoma is a very tricky disease and must be followed closely. It can metastasize to odd places. It is good news that only 1 lymph node is seen on pet/ct rather than many lymph nodes but one should note that micrometastases or very small lesions may be below the resolution of pet imaging. ...Read more

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I am a carcinoid syndrome patient and I will be having surgery soon. I have heard that anesthetics can be a problem. Is this true?

I am a carcinoid syndrome patient and I will be having surgery soon. I have heard that anesthetics can be a problem. Is this true?

Somatostatin: Patients with carcinoid syndrome from a tumor are at an increased risk of having carcinoid crisis during induction of anesthesia or manipulation of the tumor intraoperatively. Preoperative treatment with a somatostatin analog (e.g. Octreotide) should decrease this risk. This medication should also be readily available during surgery. ...Read more

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Why didn't mt. Surgeon mention that there was 4 nodules found on my liver before lung surgery for a carcinoid tumour?

Why didn't mt. Surgeon mention that there was 4 nodules found on my liver before lung surgery for a carcinoid tumour?

May be related: Depending on the findings associated with the primary tumor, resection of a primary carcinoid is reasonable even in the setting of disease in the liver. Disease in the liver can become a problem and therefore clarification of what the lesions represent and how to watch them over time should be discussed with the md. ...Read more

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Hello I'm 62, had surgery to remove lung carcinoid (1.5cm) in 2007. Still go every yr for ctscan. Why? Will the tumour recur? Million thanks.

Hello I'm 62, had surgery to remove lung carcinoid (1.5cm) in 2007. Still go every yr for ctscan. Why? Will the tumour recur? Million thanks.

Carcinoid tumor: Carcinoid tumors should be monitored like any other lung tumors. Therefore it is recommended and follow up on patients for 5 years after surgery, in order to consider the patient as disease free. Even after that carefull attention and follow up can be done after the five years. ...Read more

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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

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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

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Does a whole body pet scan show the brain?

Does a whole body pet scan show the brain?

If it is included: The drug given goes everywhere in the body, including the brain. How much of the body that is imaged depends on the disease being looked for.

For lymphoma, scans start at the base of the brain and end at the upper thighs.

For head and neck cancer, the scan is from the top of the head to the upper thighs.

Melanoma includes the whole body, and seizures is just of the brain. ...Read more

Dr. Murthy Andavolu
133 Doctors shared insights

Carcinoid (Definition)

Carcinoid refers to neuroendocrine tumors originating in gastrointestinal (GI) tract, lungs and appendix. They are usually indolent developing over many years. Aggressive, fast-growing forms such SCLC known as Oat Cell Ca of lung represents neuroendocrine carcinoma that exhibits rapid growth and early spread to distant sites. They are sensitive ...Read more