Please can you explain what this means: Pet scan showed right lower lobe lesion with increased uptake SUVMAX20. Measuring 5x5cm &the right cervical ad?

PET Scan... This PET scan is saying there is a lesion measuring 5x5 centimeters that is active physiologically-that is, it is using the isotope given during the scan. The lesion is located in the right lung, near the bottom. There are also some enlarged lymph nodes. This needs to be followed up closely because, although it may be benign, malignancy needs to be ruled out. A biopsy is likely the next step.