Pediatric Marrow Conversion

  • Etiology: marrow starts out in the long bones as red marrow and converts to yellow marrow over time, the last red marrow seen is in the proximal metaphysis
  • Imaging: yellow marrow appears in the epiphysis at 0-1 years, in the diaphysis at 1-5 years, in the distal metaphysis at 6-10 years, in the proximal metaphysis at 11-15 years

Radiology Cases of Marrow Conversion