Bone Marrow Imaging: Part I and Part II

Disorders of bone marrow are commonly encountered"nin clinical practice. For an accurate interpretation, it"nis essential to have a thorough understanding of the"nnormal marrow appearance, marrow conversion (red to"nyellow) from birth to adulthood, marrow reconversion"n(yellow to red), and benign and malignant marrow"nproliferative, replacement, depletion, and vascular"ndisorders."nThe purpose of this teaching presentation is to:"n1. Describe normal bone marrow anatomy and"nfunction."n2. Review methods of imaging bone marrow."n3. Review MR appearance of normal bone marrow in"ndifferent age groups"n4. Review marrow proliferative diseases - benign (e.g.,"nreconversion), malignant (e.g., leukemia)."n5. Review marrow replacement processes - benign"n(e.g. osteomyelitis), malignant (e.g., metastasis)."n6. Review marrow depletion disorders - benign,"nmalignant (e.g., aplastic anemia, radiation)."n7. Review vascular marrow disorders (e.g. osteonecrosis)"nand miscellaneous marrow abnormalities.