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.) Here, FOLH1 is linked to lymphoma.