Unilateral Pulmonary Uptake from Breast Cancer Shown in a Technetium-99m-Methylene-Diphosphonate Bone Scan

Extraosseous uptake of 99mTc phosphates is seen in primary tumors such as neuro blastoma and metastatic tumor such as hepatic metastasis, begin tumor, inflammation and other clinical entities. We report a case of a 40 years old woman with breast carcinoma classified T4d N1 Mx which underwent bone scintigraphy after the intravenous injection of 740 MBq of technetium-99m methylene-diphosphonate (99mTc-MDP) showing unexpected diffuse uptake throughout the left lung...