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: Radiology
Not seen in OSTEOPETROSIS: 
Select and explain. 
A. Pancytopenia, B. Delayed healing of fractures, C. Compression of cranial nerve, D. Osteomyelitis of mandible
B: Delayed healing of fractures
Answer: B: Delayed healing of fractures 
Explanation: Ans. Delayed healing of fractures