SHORT REPORT Open Access m e

Trigeminal Neuralgia (TN) is a clinical condition charac-terized by a sudden, usually unilateral, brief, stabbing, recurrent pain with a distribution consistent with one or more divisions of the fifth cranial nerve [1]. The paroxys-mal attacks are stereotyped in the individual patient, last from a fraction of a second to 2 minutes [2] and may be evoked by stimulating cutaneous or mucous trigeminal territories, the so-called trigger zones. The pain-free inter-vals may range from days to years [3]. TN may be distin-guished in classical, namely without a cause other than a neurovascular compression, or secondary to a demonstrable lesion, including benign tumors of the cerebellopontine angle or multiple sclerosis [4-6]. According to the symptom constellation, TN is categorized into typical and atypical form, the latter characterized by a constant and non