A study finding significant variation in the use of positron emission tomography (PET) scans, but no association between the number of scans and improved 2-year survival, suggests that the imaging technique might be overused in patients with lung and esophageal cancers.
http://www.journalofclinicalpathways.com/article/positron-emission-tomography-overused-patients-lung-and-esophageal-cancers
Positron Emission Tomography Overused in Patients With Lung and Esophageal Cancers –