Age group | Lipid pigment cortex | Lipid pigment medulla | Hemosiderin cortex | Hemosiderin medulla | Calcium deposition medulla |
≤10 kg (21) | 18 (86%) | 9 (43%) | 4 (19%) | 2 (10%) | 3 (14%) |
10 - 20 kg (14) | 12 (86%) | 4 (29%) | 4 (29%) | 2 (14%) | 2 (14%) |
≤20 kg (35) | 30 (86%) | 13 (37%) | 8 (23%) | 4 (11%) | 5 (14%) |
>20 kg (61) | 58 (95%) | 4 (7%) | 7 (11%) | 6 (10%) | 2 (3%) |