Brachyolmia, also known as brachyrachia, is related to spondyloepiphyseal dysplasia, maroteaux type and hereditary motor and sensory neuropathy, type iic. An important gene associated with Brachyolmia is PAPSS2 (3'-Phosphoadenosine 5'-Phosphosulfate Synthase 2), and among its related pathways/superpathways are Transport of inorganic cations/anions and amino acids/oligopeptides and CREB Pathway. Affiliated tissues include bone.