What is the radiolucent area seen on the panoramic radiograph located behind the nose and above the palate?

What is the radiolucent area seen on the panoramic radiograph located behind the nose and above the palate?

• A. Behind the nose in the nasopharynx
• B. In the maxillary sinus
• C. In the submandibular space
• D. In the parotid space

Answer: (A)

Radiolucent areas on panoramic images are air-filled spaces. Behind the nose and above the palate lies the nasopharynx, the upper part of the pharynx, which is an air-filled passage. That’s why it appears as a dark band in that region on the radiograph. The maxillary sinus is a radiolucent area too, but it sits more laterally and superiorly to the roots of the teeth, not directly behind the nose. The submandibular and parotid spaces are soft-tissue regions and don’t correspond to that specific behind-the-nose location. So the radiolucent area in that location is the nasopharynx.

Radiolucent areas on panoramic images are air-filled spaces. Behind the nose and above the palate lies the nasopharynx, the upper part of the pharynx, which is an air-filled passage. That’s why it appears as a dark band in that region on the radiograph. The maxillary sinus is a radiolucent area too, but it sits more laterally and superiorly to the roots of the teeth, not directly behind the nose. The submandibular and parotid spaces are soft-tissue regions and don’t correspond to that specific behind-the-nose location. So the radiolucent area in that location is the nasopharynx.