False positives Infection/inflammation (pulmonary, prostatitis, post radiation etc.)  Bone conditions (osteophytes, fractures, hemangiomas etc.)  Benign neoplasms (related to vascular proliferation—e.g., thyroid, parathyroid, adrenal adenomas, etc.)  Malignant neoplasms (tumors expressing PSMA—breast ca, lung ca, lymphoma, colorectal tumors, etc.) This evidence concerns the gene FOLH1 and benign neoplasm.