This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and PNS, Subject name: ENT
A patient presents with enophthalmos after a trauma to face by blunt object. Diagnosis is: 
Select and explain. 
A. Fracture maxilla, B. Fracture zygoma, C. Fracture nasal bone, D. Fracture ethmoid
B: Fracture zygoma
Answer: B: Fracture zygoma 
Explanation: (b) Fracture zygoma(Ref. Scott Brown, 8th ed., Vol 1; 1196)Enophthalmos can be present in fracture zygoma or blow out fracture of orbit.Fracture maxilla, i.e. Le Fort fracture are caused by high velocity injuries.Fracture nasal bone class 3, i.e. including ethmoid are also caused by high velocity injuries and will cause predominantly nasal manifestations which are not mentioned.