What is this patchy low-density shadow in the right pterygoid sinus?

Patchy low-density shadow in the right pterygoid sinus is usually seen in the right pterygoid sinusitis.
Pterygoid sinus is one of the human paranasal sinuses, located in the body of the pterygoid bone, is a bony cavity structure in the human body, located in the center of the human skull, behind the bilateral nostrils, divided into left and right cavities by the pterygoid sinus septum, which mainly regulates the humidity of the nasal cavity and the pressure of the nasal cavity. Patchy low-density shadow is mostly found in imaging examinations such as sinus CT or MRI.
If the mucosa of the right pterygoid sinus orifice undergoes inflammatory hyperplasia, swelling or polypoid changes in the mucosa of the upper nasal passages and the upper turbinate, the pterygoid sinus orifice can be blocked, which affects the normal discharge of secretions, and retrograde infections can occur, triggering right-sided pterygoid sinusitis. Imaging examination shows a patchy low-density shadow in the right pterygoid sinus.
According to the patient’s clinical symptoms combined with imaging and other laboratory results, the diagnosis is generally not difficult. If abnormalities are found during the examination, the examination should be improved in time, the cause of the disease should be clarified, and the treatment should be standardized under the guidance of the doctor in order to avoid delaying the condition.