is an abnormal softening or thinning of the skull, although normally present in new borns. Seen mostly in occipital bone & posterior part of parietal bone. Bone is soft and has a ping pong ball like feeling on pressing. The word comes from the German work crani
for skull and the Latin word tabes
for wasting. Any condition that affects bone growth, such as rickets
,or thalassemia present during a time of rapid skull growth can cause craniotabes.It can be a "normal " feature in premature infants. Recent research has shown it to be linked to a prenatal vitamin D deficiency.