[So-called idiopathic trigeminal paralysis. Presentation of the clinical syndrome in 3 case reports]

Idiopathic trigeminal neuropathy can affect the sensory or motor division of the fifth cranial nerve but also occurs as a combined lesion of both systems. This rare syndrome is discussed in light of three cases seen in our clinic. As the diagnosis can be secured by exclusion only, special care is necessary in the differentiation of other trigeminal lesions utilizing CSF examination, CAT scans and other radiological methods.