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: Pathology
Garre's osteomyelitis commonly involve - 
Select and explain. 
A. Jaw, B. Femur, C. Ribs, D. Small bones of hand
A: Jaw
Answer: A: Jaw 
Explanation: Sclerosing osteomyelitis of Garre typically develops in the jaw and is associated with an extensive new bone formation that obscures much of the underlying osseous structure.