Figure 3 Photograph of the back of a 3.4‐year‐old boy and his untreated mother, both with osteogenesis imperfecta type IV. The boy (patient no. 3) had received intravenous disodium pamidronate treatment for 3 years, from 0.4 years of age, whereas the mother was untreated. The mother has a severe kyphoscoliosis and basilar impression. The boy has a straight back and no basilar impression. Informed consent was obtained for publication of this figure.