Lung mass: If a lung mass is seen on chest xray or ct scan and the patient has a moderate risk of malignancy, often the next test is a positron emission tomography (pet scan). This test detects masses with high metabolic rates. Around 95% of patients with a malignant nodule will have a positive pet scan. It is falsely positive in about 21% of patients, meaning that it will suggest cancer when it is not.
Answered 10/4/2016
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PET: Is a type of scan used to determine whether something is cancerous and/or if cancer has spread to other parts of the body. A pulmonary nodule is a "spot" on the lung that can be caused by many things, including lung cancer. Pet can usually tell the difference between a benign nodule and a cancerous one. Ct is done at the same time as the pet to show the anatomy detail.
Answered 1/5/2019
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