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Pushing into Hopelessness, the problem of Achondrogenesis

Other Diseases By Arka Roy Chowdhury , Onlymyhealth editorial team / Dec 14, 2012
Pushing into Hopelessness, the problem of Achondrogenesis

A genetic disorder which normally happens to babies, here a person’s body does not produce enough growth hormone. This is an unfortunate disease as babies hardly live for long.

A severe and rare group of genetic disorders, anchondrogenesis is a rare and severe group of genetic disorders which results in a short trunk, small limbs and narrow chest.


Understand what is achondrogenesis

The disease occurs when a person’s body does not produce enough growth hormone which results in cartilage and done to not develop properly. This will then cause abnormalities in the skeletal system. There are chances that you would have a child with this disorder if both you and your partner carry this gene. Most babies who have this disorder unfortunately die before or after birth. This happens because they are unable to breathe properly. Some infants, however, have lived for a short time with intensive medical support.


Researchers have described at least three forms of achondrogenesis, designated as type 1A, type 1B, and type 2. The types are distinguished by their signs and symptoms, inheritance pattern, and genetic cause; however, types 1A and 1B are often hard to tell apart without genetic testing.


Achondrogenesis type 1A

This is also called the Houston-Harris type, is the least well understood of the three forms. Affected infants have extremely short limbs, a narrow chest, short ribs that fracture easily, and soft skull bones. They also lack normal bone formation (ossification) in the spine and pelvis.

Achondrogenesis type 1B

Also known as the Parenti-Fraccaro type, is characterized by extremely short limbs, a narrow chest, and a prominent, rounded abdomen. The fingers and toes are short and the feet may be rotated inward. Affected infants frequently have a soft out-pouching around the belly-button (an umbilical hernia) or near the groin (an inguinal hernia).


Achondrogenesis type 2

It is sometimes called the Langer-Saldino type, have short arms and legs, a narrow chest with short ribs, and underdeveloped lungs. This condition is also associated with a lack of ossification in the spine and pelvis. Distinctive facial features include a prominent forehead, a small chin, and, in some cases, an opening in the roof of the mouth (a cleft palate). The abdomen is enlarged, and affected infants often have a condition called hydrops fetalis in which excess fluid builds up in the body before birth.


The Symptoms

The symptoms of the disease are given below in accordance to its type:

Type 1 A

•  Soft skull bone
•  Spine and Pelvic bones that are poorly formed
•  Short and easily breakable ribs

Type 1 B
•  Baby would have round belly
•  There would be a pouch near the belly button
•  Short toes and fingers
•    Inwardly rotated feet

Type 2
•  Baby would have short ribs
•  Lungs that would be poorly developed
•  Small chin
•  Large forehead and belly

Unfortunately there are no treatments that exist for this disorder and the care for the baby is focused on making the baby as comfortable as possible. The duration of life is always short.

Read more articles on Achondrogenesis




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