Question: are adrenal adenomas pet avid?
Answer: Our meta-analysis revealed qualitative PET to have a sensitivity of 97% and a specificity of 91% for characterizing adrenal masses as malignant. ... The reason for this is unclear, but it is now well known that some benign adrenal lesions, particularly some adenomas, can be mildly FDG avid at PET (15,16).