Pseudoachondroplasia

Description: “Pseudo” meaning false implies that this disorder resembles but is distinct from achondroplasia. When Maroteaux and Lamy first described this disorder in 1959, it was thought to be a form of spondyloepiphyseal dysplasia (SED). It has been subsequently shown to differ from SED in its onset and less involvement of the spine. Also, both the epiphyses and metaphyses are affected in this condition. At present, pseudoachondroplasia is recognized as a form of short-limbed dwarfism that manifests itself over time and associated with premature degenerative arthritis.