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%)