Doctor insights on:
Pet Ct Lymphoma Initial Staging
Many diseases have specific treatments based on their severity. A disease can have certain criteria to determine their severity and applying this criteria to determine how advanced the disease state is called staging. Most commonly this is applied to cancer, and be determining how far the cancer has spread locally and/or to distant sites a stage of cancer can be ...Read more
Colon surgery:tumor size=2cm.Pathologic staging(pt3, n1b, mx).2/17 lymph nodes show metastatic.Margins of resection free of carcinoma.Need chemotherapy?
Yes: Chemotherapy regimens based on the drug Fluorouracil (5-fu) have been part of the treatment for high-risk stage ii or stage iii colon cancer. Many clinical trials have shown that these regimens improve overall survival primarily by reducing the high risk of recurrence within the first two years after surgery. ...Read more
Sort of...: The pet scan non-specifically show very metabolically active (consuming lots of energy), and lung cancer and its metastasis fit that category. It is not specific. Benign conditions like sarcoid can also make pet studies glow very brightly as well. Slow growing lung cancer, broncheoalveolar may not be pt avid. ...Read moreSee 2 more doctor answers
Both: The actual diagnosis of lymphoma requires tissue, usually excisional biopsy of an entire lymph node. Staging to see where other sites of disease could be is done with a combined PET/CT. The staging used to matter more many years ago when they would often give XRT or do surgery, it doesn't matter as much as it used to because almost everybody gets systemic chemotherapy for both Hodkins and non H ...Read more
Lul non small cell hilum region with lymph node involvement on pulmonary artery. Pet scan negative. Please stage.
Need more info: To completely stage, would need more information. However, lymph node involvement excluded stage 0 and stage i. If lymph nodes are on the same side as the hilar tumor, the tumor is at least 2 cm from the carina (where trachea divides into r and l main bronchi) and the tumor is 5 cm or smaller, it is stage iia. If tumor is 5-7 cm, and the rest true, it is stage iib. After that, it is complex! ...Read moreSee 2 more doctor answers
PET/CT scan: You need to fast for 4 hours first, then you will recieve an injection of a small amount of radioactive glucose (i.e. Sugar). Next you will sit in a recliner chair for about 70 minutes to allow the glucose to distribute throughout you. Then you will lie on your back on the pet/ct scanner (a tunnel shaped machine) for 20 minutes. There are no side effects from the test or restrictions afterwards. ...Read moreSee 2 more doctor answers
Different mechanisms: Mri uses magnetic radiation( no x-ray) for anatomic localization and characterization of different parts of body, water and fat constitution of different tissues.Ct uses x-ray to characterize anatomy of body, better for bone than mr.Pet, bone, gallium scans use radio tracers intravenously.Petglucose metabolism of tumors, gallium (infection/tumor), bone scan for fxs, tumors, infection bone metabolism. ...Read more
Nsclc st4. Diagnostic CT scans used iodine contrast but due to allergy, post treatment CT scans used barium. How accurate/comparable are the scans?
Not entirely: Ct imaging is useful, but pancreatic cancer can be very difficult to visualize on ct. In fact, even in patients with known pancreatic cancer it's not unheard of for the tumor itself to be poorly or incompletely seen. If there's high suspicion, endoscopy and ultrasound are useful tests. ...Read more
Depends on cancer: Each cancer type has an optimum way to image it, especially with techniques that image physiology, like pet and bone scan, as opposed to techniques that image anatomy, like ct and mri. Pet is best for cancers that use a lot of glucose as an energy source, like lung cancer. Bone scans are best for cancers that disrupt bone, like prostate cancer. ...Read moreSee 2 more doctor answers
My pet scan was highly suspicious for malignancy in rt lung.Now onto Bronchoscope so didn't pet confirm cancer?This cancer isn't curable!
PET scan helps but n: A PET scan can show an abnormality where body cells are overactive. This happens commonly with Cancer and with any Infection or inflammation. So a biopsy is required to make the distinction between Inflammation and Cancer. A bronchoscopy may show the tumor or it may be used to get a biopsy by getting near to the tumor ...Read more
How sensitive is pet scan in detecting metastatic clear cell renal cancer, irrespective of screening guidelines (uiss/nccn) , side effects, cost?
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
Can hodgkin lymphoma transform to NHL? After 4 cycle of ABVD, PET showed an area with SUV 14. Initial diagnosis was HL IIb, bulky.
Yes it can: This change has been reported, so it is entirely possible. But only a biopsy of the new area or the growing lymph node can determine what is going on. Your oncologist should be able to help address this matter for you. Or you can seek a second opinion from another medical oncologist, if you are not totally satisfied with your current oncologist. ...Read more
Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! the image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but ...Read more
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