Nasopharyngeal biopsy is a routine examination in the Department of Otolaryngology. This examination is performed with local surface anesthesia of the nasal cavity, and after anesthesia, a small amount of pathology is taken locally through biopsy forceps under the guidance of nasal endoscopy, and then sent to the pathology department for clear results. The cost of nasopharyngeal biopsy is about 200-300 RMB. 4. After taking the nasopharyngeal biopsy, the pathology should be sent to the pathology department for pathological examination, and the cost of pathological examination is about 500 RMB. So in total, the cost of nasopharyngeal biopsy is 800-900 yuan, not more than 1000 yuan overall. If the nasopharyngeal mass is suspected to be bad in nature and immunohistochemistry is needed, the cost is higher and may add up to about$2000.