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PRIMARY TRIGEMINAL NEURALGIA Zheng Dongming Neurology Ward.

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Presentation on theme: "PRIMARY TRIGEMINAL NEURALGIA Zheng Dongming Neurology Ward."— Presentation transcript:

1 PRIMARY TRIGEMINAL NEURALGIA Zheng Dongming Neurology Ward

2 I.DEFINITION Primary trigeminal neuralgia refers to paroxysmal brief severe pain within the distribution of trigeminal nerve,usually without organic disease of the nerve.

3 II.ETIOLOGY AND PATHOLOGY Etiology: unknown Pathology: no definite conclusion

4 III.CLINICAL FEATURE 1.sex and age Sex:female:male=2:1~3:2 Age: 70%~80% patients >40 years old

5 III.CLINICAL FEATURE 2.distribution any of the 3 divisions (2,3) unilateral marked in cheek,jaw,tong- ue

6 III.CLINICAL FEATURE 3.characteristics of the pain brief:seconds~2m ins severe:tic douloureux. “ Trigger area ” paroxysmal

7 III.CLINICAL FEATURE (4)sign No positive sign

8 IV.DIAGNOSIS AND DIFFERENTIAL DIAGNOSIS Diagnosis:based on clinical feature Differential diagnosis:toothache sinusitis nasopharyngeal cancer secondary TN

9 V.TREATMENT General treatment:analgesic and sedative drugs Medicine:carbamazepine,phenytoin,clonozepam Injection of phenol or alcohol Surgery


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