Bone or cartilage mass other diagnostic studies

Bone scintigraphy may be helpful in the diagnosis of bone and cartilage tumors. Radioisotopes play an important role in the differential diagnosis between benign and malignant bone lesions.^[1][2]

• Bone scintigraphy may be helpful in the diagnosis of bone and cartilage tumors
• Radioisotopes play an important role in the diagnosis of benign and malignant bone lesions^[1]
• Bone scintigraphy is primarily used to help diagnose a number of conditions related to bone or cartilage masses, including: primary bone tumors, secondary bone tumors, locating some sources of bone inflammation
• Bone scintigraphy features, include:^[1]

• Characterization of bone malignancy
• Characterization of pathological fractures
• Technetium-99m methylene diphosphonate (Tc-99m MDP) is the isotope of choice
• Useful for bone and cartilage tumors staging^[2]
• Useful for the prognosis in some primary bone malignancies
• Useful for determining response to therapy

• Common findings, include:

• Lesions with increased uptake in any bone involved

• 
  Bone metastases: prostate cancer
  Adapted from Wikipedia