How to diagnose temporal bone eminence?

summary

Temporal bone eminence is a symptom of arachnoid cyst. Arachnoid cyst is a kind of benign brain cyst. There are arachnoid cystic wall and cerebrospinal fluid like cystic fluid. The cysts are located on the surface of the brain, closely related to the subarachnoid space, but do not invade the brain. Most of them were single, a few were multiple, often located in cerebral fissure and cistern. Large volume can compress brain tissue and skull at the same time, which can produce neurological symptoms and skull changes. How to diagnose temporal bone protrusion? Let's get to know each other! I hope these can help you!

How to diagnose temporal bone eminence?

1. Skull X-ray film: cyst long-term compression can produce local changes in the skull. For example, in the lateral fissure type, the small wing of sphenoid bone was lifted and thinned, the large wing and temporal scale were uplifted, the middle cranial fossa was compressed, and the sella was destroyed and absorbed. The cranial protrusion type is characterized by asymmetric enlargement on both sides of the cranial top, local bone thinning and bone suture separation. The petrous bone of cerebellopontine angle type has round and smooth bone absorption in the internal auditory canal. Lipiodol bridge cisternography can show cyst shadow. Other types of cranial changes were less.

2. It should be differentiated from temporal bone fracture. Temporal bone fracture is a part of head trauma, which is often caused by traffic accident, frontal occipital impact, degeneration and so on. It may be accompanied by different degrees of intracranial or thoracic, abdominal and other tissue and organ damage. Among the petrous part, squama part and mastoid part of temporal bone, the most common part is the masked part. Because the junction between petrous part and squama part is stubborn and weak, the middle ear is more likely to be involved than the inner ear.

3. Although there is temporal bone protrusion, no operation is needed if there is no clinical symptom. If there are symptoms, the cyst fluid should be removed and the surface of the cyst wall should be excised. The inner wall should be cut to connect with the subarachnoid space. Good results can often be obtained. For those with hydrocephalus, if the symptoms of increased intracranial pressure can not be relieved by the above operation, or if the cyst relapses after operation, cerebrospinal fluid shunt can be performed.

matters needing attention

Temporal bone eminence is a symptom of arachnoid cyst. Arachnoid cyst is a kind of benign brain cyst. There are arachnoid cystic wall and cerebrospinal fluid like cystic fluid. The cysts are located on the surface of the brain, closely related to the subarachnoid space, but do not invade the brain. Most of them were single, a few were multiple, often located in cerebral fissure and cistern.