Increased concentration of 99mTc-methylene diphosphonate and 67Ga-citrate in extracranial bone metastases from pinealoma

A rare case of extracranial bone metastases from pinealoma is reported. 99mTc-methylene diphosphonate and 67Ga-citrate scans were of great clinical value in confirming the presence of bone metastases. Bone lesions were positively delineated by both radionuclides, but the concentration of 67Ga-citrate was more extensive than that of 99mTc-methylene diphosphonate.