PTA Physical Therapy Assistant

Answer: B - Beading at the costochondral junction is called rickety rosary.

Rickets is commonly caused by vitamin D deficiency in children below 4 years of age. Multiple musculoskeletal changes occur in this condition including pigeon chest deformity, and presence of beading at the costochondral junction called rickety rosary.

Failure of the closure of frontenellae, even after 2 years of age, gives the “hot cross bun appearance” (craniotabes) along with the parietal and frontal bossing.

Groove-like deformity in the lower chest is called Harrison’s sulcus.