ANATOMY

Detailed explanation-1: -The most common cause of dwarfism is a disorder called achondroplasia, which causes disproportionately short stature. This disorder usually results in the following: An average-size trunk. Short arms and legs, with particularly short upper arms and upper legs.

Detailed explanation-2: -Phocomelia syndrome is a rare birth defect characterized, in most instances, by severe malformation of the extremities. Infants born with this condition will have arms and/or legs that are severely shortened or sometimes completely absent.

Detailed explanation-3: -Hypochrondroplasia is a genetic disorder characterized by small stature and disproportionately short arms, legs, hands, and feet (short-limbed dwarfism).

Detailed explanation-4: -Health problems commonly associated with achondroplasia include episodes in which breathing slows or stops for short periods (apnea), obesity, and recurrent ear infections. In childhood, individuals with the condition usually develop a pronounced and permanent sway of the lower back (lordosis ) and bowed legs.

Detailed explanation-5: -Expand Section. Achondroplasia is one of a group of conditions called chondrodystrophies or osteochondrodysplasias. These rare genetic disorders cause problems with the development of bone, cartilage, and connective tissue.