This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System, Subject name: Radiology
[{'content': 'Which of the following is not seen in coronal CT paranasal sinuses? \nSelect and explain. \nA. Ostiomeatal complex, B. Orbit, C. Sinus cavities, D. Frontoethmoid recess', 'role': 'user'}, {'content': 'Answer: D \nExplanation: ANSWER: (D) Frontoethmoid recessREF: Sutton 7th ed vol 2 page 1519-1522, Grainger 5th ed chapter 62See previous question', 'role': 'assistant'}]