“ At birth, red (haematopoietic) marrow is present throughout the entire skeleton. Conversion of red to yellow (fatty) marrow occurs over a ...
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At birth, red (haematopoietic) marrow is present throughout the entire skeleton. Conversion of red to yellow (fatty) marrow occurs over a period of about 20 years, beginning distally in the hands and feet and migrating proximally until red marrow remains only in the:
• Axial skeleton
• Skull
• Vertebral column
• Thoracic cage
• Pelvic girdle
• Humeral and femoral metaphyses.
Normal haematopoietic bone marrow may appear similar to malignant infiltration—location is a major discriminator.
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