Malignant infantile osteopetrosis is a rare inherited disease of bone metabolism, in which osteoclast dysfunction and diminished bone turnover lead to diffuse sclerosis with obliteration of the medullary cavities and narrowing of the skull base neural foramina. We report a case of malignant infantile osteopetrosis with bone marrow failure and optic atrophy that co-occurred with hypophosphatasia, another rare inherited bone disease, in a 6-year-old boy. Key imaging signs of these rare diseases are discussed.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.