Benign Vertebral Accumulation of 99mTc-phytate
The authors present a case of increased accumulation of 99mTc-phytate in the third lumbar vertebra without obvious compression fracture. The affected vertebral body showed low signal intensity on Tl- weighted MR images and high signal intensity on T2*- weighted images. Increased accumulations of 99mTc-MDP and 67Ga-citrate were also noted. Although the findings other than those on 99mTc-phytate scintigraphy were consistent with bone metastasis, the follow-up study suggested that the lesion was essentially benign. The findings on colloid imaging were useful to evaluate the condition of the vertebral lesion.