Ultrasound, or B-mode ultrasound, cannot detect pharyngitis or pharyngeal tumors.
The working principle of B-ultrasound is mainly to use the ultrasound waves emitted by the machine, which are reflected back after contacting the object, and then processed by the signal processing system, and then displayed as waveforms and images on the monitor for the doctor’s diagnosis. It is mainly used to observe solid organs such as the liver, spleen and urine-filled bladder.
The pharynx is an air-containing cavity, which is not conducive for ultrasound to visualize the tissues in the cavity and exert its characteristics. Therefore, ultrasound does not have the prerequisites to show lesion characteristics for inflammation of the mucosa and submucosa of the pharynx, as well as for tumors of the pharynx.
When there is pharyngeal discomfort, you should actively seek medical treatment and choose laryngoscopy, laryngeal CT or enhanced CT as prescribed by your doctor for investigation, and if necessary, perform pathologic examination to clarify the diagnosis.