68Ga-PSMA Avid Primary Adenocarcinoma of the Lung With Complementary Low 18F-FDG Uptake

68Ga-PSMA PET/CT scan on a 70-year-old man with recently diagnosed prostate cancer revealed a spiculating nodule in the apex of the left lung with intense 68Ga-PSMA uptake. The nodule had no pathological 18F-FDG uptake and turned out to be a primary adenocarcinoma of the lung. Cases with complementary pattern of uptake in 18F-FDG and 68Ga-PSMA in metastatic clear cell renal carcinoma and in well-differentiated hepatocellular carcinoma have previously been reported; however, this case illustrates that this unusual pattern can also be present in primary lung cancer.
Source: Clinical Nuclear Medicine - Category: Nuclear Medicine Tags: Interesting Images Source Type: research