Can someone help make sense of Pet Scan

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Can someone help make sense of Pet Scan

by michael4444 on Mon Nov 12, 2018 07:03 PM

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Study Result

Impression

IMPRESSION: 

1. Stable findings in the right lung as detailed above may represent post treatment changes, however could mask focal underlying lesion of alternate etiology, particularly in the right anterior perihilar region.

2. New focal uptake in the midline posterior vocal cord region, may be physiologic and related to phonation post radiopharmaceutical injection, however a focal lesion in this area could have a similar appearance (although there is no obvious anatomic 

correlate on the non IV contrast CT images). Close attention on follow-up imaging versus direct inspection is recommended.

Thank you for referring this patient.

Narrative

18F-FDG PET/CT: 11/2/2018 

HISTORY: "metastatic lung cancer evaluation to treatment" 

TECHNIQUE: The patient was intravenously injected with 14.64 mCi 18F-FDG via a right antecubital vein at 14:35. PET/CT scanning began at 16:15. Prior to injection blood glucose was measured at 93 mg/dl and patient weight was reported as 80 kg. Images 

were acquired from the skull base to the mid thighs. The low-dose noncontrast CT data was used for attenuation correction and anatomic localization. Reconstructed images in the axial, sagittal and coronal views were interpreted. Quantitation was 

performed using maximum standardized uptake values (SUVmax).

COMPARISON: PET/CT 9/13/2018.

FINDINGS:

Head/Neck: There is focal uptake, SUV 8.8, in the midline posterior vocal cord region, without obvious CT abnormality on the non IV contrast images. The area of abnormal uptake measures approximately 2.4 x 1.6 cm.

Chest: Again seen is diffuse low level FDG uptake, SUV 2.8 compared to prior SUV 2.1, within an opacified region of the right lower lobe where there are air bronchograms with similar appearance compared to prior examination. There is similar FDG uptake 

corresponding to regions of nodular pleural thickening along the right lung pleural, for example: anterior paramediastinal, SUV 2.1 compared to prior SUV 1.7; and along the lateral diaphragmatic reflection, SUV 2.7 compared to prior SUV 2.5.

In the anteromedial right perihilar region there is similar FDG uptake , SUV 3.1 compared to prior SUV 2.6, within a stable sized approximately 2.6 x 2.3 cm right upper lobe opacity, which extends posteriorly to the fissure.

There is stable trace right pleural fluid.

No FDG avid lymphadenopathy is seen in the thorax.

Again seen is a left IJ approach chest port with tip in the right atrium. 

There is similar linear FDG uptake in the region of the intra-atrial septum. 

Abdomen/Pelvis: Physiologic distribution of radiotracer is seen throughout the abdomen and pelvis. There is no hypermetabolic lymphadenopathy and there are no focal FDG avid lesions in the abdominopelvic organs.

RE: Can someone help make sense of Pet Scan

by pip1948 on Tue Nov 13, 2018 05:00 PM

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I think you are going to have to wait and have your doctor explain it.  I know that it is hard to wait. I am always reading all of my test results off of my electronic chart on line that our hospital system offers.  But I often just confuse myself more. 

I mean .....  truely no matter what it is saying... does it make a difference if you know today or a week from today?  

Just live your life the same way that you have been and wait until your appointment to hear what the doctor has to say. You knowing anything now or later, isn't going to change a thing. I know, easy for me to say, right? 

Hange in

RE: Can someone help make sense of Pet Scan

by pip1948 on Sun Nov 25, 2018 01:57 PM

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I think that you are going to have to let your doctor explain it to you.  All I know about it,  is that anything over a 2.5 is considered suspicious for malignancy. And that there are a lot of reasons that an area can show over a 2.5 that are not malignancy. Like... I have gall stones and those showed but they knew what they were. Like that.  

I know that it is hard not to try to understand it yourself, but I think your doctor is going to have to explain this one to you. 

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