A brief description of each is presented in ensuing texts. This condition is benign and self limiting. It manifests before a child is 9 months old presenting soft tissue swelling and bony cortical thickening - especially of the jaw and ulna. There is always a periosteal reaction. A similar disorder occurs in older children, with hypervitaminosis A. Infantile Cortical Hyperostosis does not however produce bleeding gums, fissures at the corners of the mouth or the liver abnormalities associated with the disorder suffered by older children.
Older children are also likely to suffer scurvy and progressive diaphyseal dysplasia.
Osteogenesis Imperfecta Ol. This disorder presents a decreased collagen secretion. The disorder is ongoing displaying differing inheritance patterns and severity. There are several varieties of rickets based on the base cause which could be poor diet, G.I., kidney or end-organ dysfunction. See adult classification.