This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disease of External Nose & Nasal Septum, Subject name: ENT
Bony septal perforation occurs in: 
Select and explain. 
A. TB, B. Syphilis, C. Leprosy, D. Sarcoidosis
B: Syphilis
Answer: B: Syphilis 
Explanation: (b) Syphilis(Ref. Scott Brown, 6th ed., Paediatric, 4/ 11/19)Syphilis leads to perforation of the bony part of nasal septum. Another important cause of bony septal perforation is Wegener's granulomatosis.Rest options may lead to perforation of the cartilaginous part of the septum.