furthermore , the procedure is noninvasive and provides an atraumatic method for evaluating a number of clinical problems including a discrepancy between bone marrow histology and clinical status ( possible marrow sampling error ) , the determination of amount of active marrow after radiation and chemotherapy when further therapy is being considered , detection of sites of extramedullary hematopoiesis , location of the optimal sites for bone marrow biopsy , the diagnosis and staging of diffuse hematologic disorders , detection of metastases , the diagnosis of bone marrow infarcts in hemolytic anemias , and detecting avascular necrosis of the femoral heads .
C0005954
bone marrow biopsy
C0005953
bone marrow