Sinus CT can visualize the nasopharynx. Sinus CT scans usually extend from the orbits and anterior skull base up to the mouth and nasal floor. It is usually a thin, high-resolution scan that visualizes all structures within the scan, such as the anterior skull base, bilateral orbits, nasal bones, nasopharynx, inner and outer pterygoid plates, middle ear mastoid cavity, hard palate, cervical spine, and the blood vessels, muscles, and lymph nodes of the neck, in addition to the usual eight sinus and nasal structures. It is usually able to detect common lesions in the nasopharynx, such as adenoid hypertrophy, nasopharyngeal soft tissue occupancy, pharyngeal crypt soft tissue occupancy suspicious of nasopharyngeal carcinoma, and middle ear cavity effusion, and so on. However, CT is only an imaging examination, and for suspected nasopharyngeal cancer, local biopsy should be taken and sent to pathology to confirm the diagnosis.