What is Upper segment : lower segment ratio decreases in all of the following except? and explain in detail?
Upper segment : lower segment ratio increases in Achondroplasia- cause of sho limb dwarfism. Sho trunk dwarfism (US:LS ratio- decreases) Sho limb dwarfism (US:LS ratio- increases) Sho- Spondyloepiphyseal dysplasia Rickets Man- Mucopolysaccharidosis Achondroplasia May- Mucolipidosis Osteogenesis imperfecta Climb- Caries spine (pott's disease) Congenital hypothyroidism High- Hemiveebra Chondroectodermal dysplasia