Nasopharyngeal carcinoma becomes very scary after it reaches advanced stage, not only the difficulty of treatment will increase, but also the pain it causes to the patients will be greatly increased. Advanced nasopharyngeal carcinoma often invades the optic nerve near the optic cross, causing loss of vision and nasal or temporal hemianopia.
Nasopharyngeal carcinoma becomes very scary after it reaches advanced stage, not only the difficulty of treatment will increase, but also the pain it causes to the patients will be greatly increased. Advanced nasopharyngeal carcinoma often invades the optic nerve near the optic cross, causing loss of vision, nasal or temporal partial blindness, which can lead to blindness in one or both eyes, and optic nerve atrophy is found in fundus examination. The long stroke of the nerve is located in the area easily invaded by nasopharyngeal carcinoma, so it is frequently and early invaded, causing diplopia, inability to turn the eye outward, and internal strabismus. The nerve is affected by the carotid nerve, which causes difficulty in lower vision due to the limitation of the external and inferior rotation of the eye. The articular nerve is compressed, resulting in impaired eye movement and ptosis. Involvement of the ophthalmic branch of the trigeminal nerve results in numbness of the upper and lower lid skin and a dull or absent corneal reflex. Orbital tissues are invaded to produce protrusion of the eye.
In advanced stage, nasopharyngeal carcinoma may bleed more and nosebleed may appear; 2. Tinnitus, hearing loss, and occlusion in the ear occurring in early stage may become more serious in advanced stage; 3. In advanced stage, the tumor damages the skull base or spreads in the skull and involves the cranial nerve, causing persistent migraine with fixed location; 4. The invasion of nasopharyngeal nerve often causes inward strabismus and diplopia; 5;
In addition to the above symptoms, nasopharyngeal carcinoma in late stage may also cause double vision due to tumor invasion of the abducens nerve; cancer cells invading the talocrural nerve may cause inward strabismus and diplopia; nasopharyngeal carcinoma directly invades or lymph nodes metastasize to the posterior region of the caudate or the hypoglossal nerve canal. The invasion of nasopharyngeal cancer directly or lymph nodes to the posterior region of the caudate or the inferior lingual nerve canal can cause tongue deviation to the affected side and tongue muscle atrophy. If patients with nasopharyngeal carcinoma show the above symptoms, they should be given timely and effective symptomatic treatment.