None listed
Conditions
Brief summary
The aim of this prospective study was to determine whether ultrasonography represents a potential screening method for suspected cases of nasopharyngeal carcinoma, and to evaluate the imaging information provided by ultrasonography that can be applied to the clinical staging and treatment of nasopharyngeal carcinoma.
Interventions
Sponsors
Eligibility
Inclusion criteria
Suspicion of NPC was based on the presence of metastatic cervical lymph nodes and/or a nasopharyngeal abnormality accompanied by nonspecific symptoms (e.g., epistaxis, nasal obstruction, hearing loss).
Exclusion criteria
Patients were excluded if they did not successfully undergo US, MR imaging, and an endoscopic biopsy, or if a non-NPC tumor of the nasopharynx was diagnosed.