RADIOLOGY: HEMATOLOGIC: BONE MARROW: METASTATIC BREAST CANCER. BONE MARROW SCAN; SEE IMAGE 45591 SCAN SHOWS INCREASED ISOTOPE ACTIVITY IN THE EXTREMITIES INDICATIVE OF ERYTHROID HYPERPLASIA. THERE IS INCREASED ACTIVITY IN THE THORACIC SPINE AND SACRUM AND PATCHY UPTAKE IN THE LIVER INDICATIVE OF METASTATIC LESIONS. (RADIONUCLIDE SCAN)