GZMB and neoplasm: The lung adenocarcinoma, a partial metabolic responder, had a granzyme B PET tumor SUVmax of 4.1 and a tumor-to-blood ratio of 1.2, whereas the sarcomatoid carcinoma was determined to be a partial nonresponder, with a tumor SUVmax of 2.0 and a tumor-to-blood ratio of 0.8.