What is a common feature seen in Vitamin D deficiency in children?

A common feature seen in Vitamin D deficiency in children is the presence of rachitic rosary. Rachitic rosary is a term used to describe the beading of the ribs that occurs due to the expansion of the costochondral junctions as the cartilage fails to mineralize properly in conditions such as rickets, which is directly related to Vitamin D deficiency. This deficiency disrupts the mineralization of bone, leading to softening and deformities in the skeletal structure during periods of growth.

Children with Vitamin D deficiency are at risk for conditions like rickets, characterized by poor bone development, leading to associated features like bowed legs and growth retardation, in addition to rachitic rosary. The beading is particularly noticeable in the lower ribs and serves as a clinical sign that indicates underlying metabolic bone disease linked to inadequate Vitamin D levels.

The other options relate to different medical conditions and do not typically present in the context of Vitamin D deficiency. Cleft palate is a congenital condition unrelated to vitamin deficiencies, thymic atresia is associated with immunodeficiency disorders, and hydrocephalus pertains to cerebrospinal fluid accumulation in the brain with distinct causes. Therefore, rachitic rosary is the correct choice as it directly correlates with