PET signal can be misdiagnosed after lung biopsy or wedge removal
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Last Update: 2020-07-06
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Source: Internet
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Author: User
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a studythe MayoHospital in the United States, a lungtumorpatients who ingestave radioactive tracer in positor-fired tomography (PET) after an invasive lung test (pontoun biopsy) may increase signal errors(Mayo Clin Proc 2007, 82: 1060)MayoHospital
DrJohnson, etc., reported five cases of patients who had no corresponding abnormalities in CT scans after a bronchoscopy biopsy or a thoracic cavity wedge removal, but at PET scans, 18 fluoro-labeled fluoro-deoxygenglucose showed an increase in reactive metabolismThe increase in PET scan radioactive tracer in3 patients occurred 6 to 12 days after bronchoscopy biopsy, and the other two patients increased their intake 3 weeks after a thoracic pulmonary excisionJohnson said it was the first time the situation had been reported to the outofingThe researchers speculated that the increase in glucose metabolism in these patients was most likely due to tissue damage caused by surgery, which caused an inflammatory reaction that attracts the accumulation of neutrophils and macrophagesJohnson said the five patients could explain the underlying causes of previous PET scans that were false positiveThey suggest that potential clinical errors can be ruled out for suspected lungtumors
patients who have PET scans and staging before invasive chest tests can be eliminated
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