facial numbness
Introduction
Introduction "Nymosis" means that the skin is irritated and numb. "Ma" is a feeling, "wood" is no feeling, when there is a difference, but clinically "hemp" and "wood" often see, so it is commonly called "numb". The trigeminal nerve dominates the facial sensation. Any lesion that damages the trigeminal nerve and its conductive fibers can produce facial numbness. Can be seen in the symptoms and signs of epidermoid cysts.
Cause
Cause
Epidermoid cysts, also known as cholesteatomas or pearlomas, are caused by abnormal ectodermal cell migration during neural tube closure, accounting for 1% of primary intracranial tumors, occurring in young adults, with cerebellopontine angle regions Common, followed by saddle upper pool, quadrilateral, cranial fossa and ventricular system can also occur in the skull barrier. The epidermoid cyst is thin and is formed by a layer of epidermal tissue. The capsule consists of epithelial debris, keratin and cholesterol.
Examine
an examination
Related inspection
Nervous system examination
Symptoms and signs: numbness, pain or tics on one side, hearing loss, progressive visual impairment, diplopia, paroxysmal headache, vomiting, unconsciousness, hemiplegia, unstable walking, unclear language, seizures, etc. Drink more urine and endocrine dysfunction symptoms. Fundus examination showed papilledema, optic atrophy as primary or secondary, hemiplegia, aphasia and ataxia.
Clinical manifestations: Symptoms develop slowly and the course of disease can last for decades. The clinical symptoms and signs are related to the tumor site. The cerebral cerebral cerebral horn area tumors often have trigeminal neuralgia as the first symptom. The intracranial fossa tumor is mainly characterized by trigeminal nerve damage. Cerebral hemisphere tumors often have seizures and hemiparesis. Cerebellar hemisphere tumors often have ataxia. The tumor in the sellar region showed slow progressive vision loss.
Diagnosis
Differential diagnosis
Differential diagnosis of epidermoid cysts:
1 teratoma: a mass mixed with fat density.
2 Dermoid cyst: in the midline, the lesion density is more uniform, often lower than the cerebrospinal fluid, and the incidence is lower.
3 arachnoid cyst: density and cerebrospinal fluid similar, and uniform, often round or oval, the shape is more regular, no visible seams.
Symptoms and signs: numbness, pain or tics on one side, hearing loss, progressive visual impairment, diplopia, paroxysmal headache, vomiting, unconsciousness, hemiplegia, unstable walking, unclear language, seizures, etc. Drink more urine and endocrine dysfunction symptoms. Fundus examination showed papilledema, optic atrophy as primary or secondary, hemiplegia, aphasia and ataxia.
Clinical manifestations: Symptoms develop slowly and the course of disease can last for decades. The clinical symptoms and signs are related to the tumor site. The cerebral cerebral cerebral horn area tumors often have trigeminal neuralgia as the first symptom. The intracranial fossa tumor is mainly characterized by trigeminal nerve damage. Cerebral hemisphere tumors often have seizures and hemiparesis. Cerebellar hemisphere tumors often have ataxia. The tumor in the sellar region showed slow progressive vision loss.
