Abnormal side-to-side curvature of the spine (scoliosis) is a frequent complication.
In French, Cri du chat translates into “cry of the cat”.
The symptoms of cri du chat syndrome vary from case to case.
In addition, the fleshy mass (uvula) that hangs in the back of the throat may be spilt (bifid uvula).
As affected infants age the face may lose its plumpness and become abnormally long and narrow.
Some children may display hyperactivity or self-abusive behaviors.
While children with cri du chat syndrome are born hypotonic (low muscle tone), they tend to become hypertonic (high muscle tone) as they grow older.
Prematurely graying of the hair has also been reported.
Some individuals may develop repeated respiratory and intestinal infections.
Speech development is especially delayed in children with cri du chat syndrome.
Affected children usually understand speech better than they can communicate.
Improper alignment of the upper and lower teeth (malocclusion) may also occur.