Age group | Lipid cortex | Lipid medulla | Hemosiderin cortex | Hemosiderin medulla | Calcium medulla |
<0.5 y (6) | 0 (0%) | 0 (%) | 0 (%) | 0 (%) | 0 (%) |
0.5 - 6 y (32) | 26 (81%) | 3 (9%) | 2 (6%) | 0 (0%) | 1 (3%) |
7 - 13 y (53) | 52 (98%) | 11 (21%) | 8 (15%) | 7 (13%) | 3 (6%) |
>13 y (9) | 9 (100%) | 3 (33%) | 5 (56%) | 2 (22%) | 3 (33%) |