This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Rickety rosary seen in all except – 
Select and explain. 
A. Rickets, B. Scurvy, C. Chondrodystrophy, D. Syphilis
D: Syphilis
Answer: D: Syphilis 
Explanation: Rachitic (Rickety) rosary

The prominent knobs of bone at costochondral junctions of rickets patient is known as rachitic rosary or beading of ribs.
The knobs create the appearance of large beads under the skin of the rib cage, hence the name by analogy with the beads of a rosary.

Differential diagnosis of enlargement of costochondral junction (Rosary) --> Rickets, Scurvy, Chondrodystrophy