On a panoramic image,which of the following structures appears as a radiolucency?

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On a panoramic image,the pterygomaxillary fissure appears as a radiolucency.The lateral pterygoid plate is a wing-shaped bony projection of the sphenoid bone located distal to the maxillary tuberosity region.The lateral pterygoid plate appears as a radiopaque bony projection that lies distal to the maxillary tuberosity region.The medial pterygoid plate appears as a bony projection that lies medial to,and is obscured by,the lateral pterygoid plate.A fissure is a narrow space or cleft,so a greater number of photons would pass through this area of decreased density.The coronoid process is a marked prominence of bone found on the anterior superior ramus of the mandible.The coronoid process appears as a triangular radiopacity that lies posterior to the maxillary tuberosity region.

On a Panoramic Image,which of the Following Structures Appears as a Radiolucency