Question
A 30-year-old patient presents to the clinic complaining of recurrent frontal headaches. The physician decides to evaluate the patient’s sinuses and considers the best imaging view to clearly visualize the frontal sinuses to rule out sinusitis. Which radiographic view provides the most detailed visualization of the frontal sinus?
| A. |
Lateral view |
| B. |
Caldwell view |
| C. |
Waters view |
| D. | Submentovertex (SMV) view |
|
Correct Answer � B Explanation |
 |
The Caldwell view is particularly useful for examining the frontal and ethmoid sinuses. In this radiographic technique, the patient’s forehead rests against the image receptor, with the central ray directed caudally at a 15- to 20-degree angle. This orientation offers a detailed visualization of the frontal sinuses above the orbit, making it ideal for diagnosing conditions affecting these areas.
Reasons to rule out other options
A. Lateral view: While useful for assessing the sphenoid and posterior ethmoid sinuses, the lateral view does not provide a clear image of the frontal sinuses due to overlapping bony structures.
C. Waters view: This projection is excellent for examining the maxillary sinuses and the nasal cavity but does not optimally display the frontal sinuses as the Caldwell view does.
D. Submentovertex (SMV) view: Primarily used for visualizing the sphenoid sinus and the clivus, the SMV view offers limited detail on the frontal sinuses compared to the Caldwell projection.