+22 Hair Cartilage Hypoplasia References. The disorder has several characteristic orthopaedic. Beside dwarfism, chh has a wide spectrum of.

Web the physical characteristics of cartilage hair hypoplasia include a short limbed form of disproportionate short stature with fine, sparse hair. Web cartilage hair hypoplasia is caused by mutations in the rmrp gene located on chromosome 9p13.3. Chh is sometimes also referred to as.