Rickets and osteomalacia of various origins.

Further causes of rickets or osteomalacia need to be added to the list previously published by the author. These include phosphate deficiency osteomalacia from prolonged consumption of aluminum hydroxide, rickets and osteomalacia from prolonged therapy by antiepileptic drugs, rickets associated with the severe form of osteopetrosis, further rare causes of the Fanconi syndrome, congenital rickets occurring when the mother has osteomalacia from dietary causes or has celiac disease and temporary neonatal rickets probably due to enzymic immaturity. The importance is stressed of defining as closely as possible the type of rickets or osteomalacia one is dealing with, especially when considering therapy and detailed pathogenesis.