<prompt> Which technetium is most commonly used in bone pathology?99m Tc MDP99mTc Sestamibi99m Tc Exametazime99m Tc Pyrophosphate  <response>: Technetium 99mTc medronic acid is a pharmaceutical product used in nuclear medicine to localize hone metastases as well as other diseases that can alter the normal osteogenesis in bone. 99mTc-medronateAka 99mTc-methylene diphosphonate, or 99mTc-MDPFDA approved imaging agent to investigate extra-skeletal osteogenesis Metastasis 