Breast Carcinoma Shown on 99mTc-HYNIC-TOC Study Performed to Evaluate Tumor-Induced Osteomalacia

A 74-year-old woman with a history of suspected tumor-induced osteomalacia underwent 99m Tc-HYNIC-TOC scintigraphy to search potential culprit tumor. The images showed one in the middle shaft of left femur without corresponding morphology change on the CT portion of the subsequent SPECT/CT images. The patient declined surgical exploration of the left femur. Another activity was in the right breast, which was resected and pathologically confirmed...