With the rapid development of medical technology, more and more advanced equipments have been used for the examination of nasopharyngeal carcinoma, so what are the examination methods of nasopharyngeal carcinoma? How to perform the examination of nasopharyngeal cancer, the following are the examination methods of nasopharyngeal cancer.
Nasopharyngoscopy (1) Indirect nasopharyngoscopy: This is a simple, fast and effective examination method.
(2) Fiber nasopharyngoscopy: This method is relatively simple, but the observation of posterior nostril and anterior parietal wall is not satisfactory. The posterior nasal aperture, nasal septum, posterior part of nasal cavity, lateral wall of nasopharynx, eustachian tube, lateral fossa, back and posterior wall of soft palate can be observed.
Local extension of nasopharyngeal cancer often causes brain nerve damage, resulting in various neurological disorders in the head and face.
X-ray examinations are commonly used for nasopharyngeal lateral radiographs and skull base radiographs to understand the extent of tumor and skull base destruction, which are helpful for staging nasopharyngeal cancer, formulating radiation treatment plan, following up patients and evaluating prognosis.
4.Radionuclide bone imaging diagnosis Radionuclide bone imaging diagnosis is a non-invasive and sensitive diagnostic method. It is generally believed that the positive rate of bone metastasis diagnosis by bone scan is 30% higher than that by X-ray, and the lesions can be detected 3-6 months earlier.
5.CT examination The application of CT examination for nasopharyngeal cancer can understand the location of tumor in the nasopharyngeal cavity, whether the canal lumen is deformed or asymmetric, and whether the pharyngeal crypt is shallow or occluded. Nasopharyngeal microscopy is of outstanding value in the diagnosis of intracavitary microscopic tumors, which are often not detected by X-ray plain film and CT. However, most posterior and lateral wall tumors are submucosal infiltrative growths, which are difficult to be detected by nasopharyngoscopy, but can be clearly shown by nasopharyngeal lateral radiographs and CT.