Diagnostic difficulties in etiology of the lesion of peripheral neuron of the facial nerve during the growth of sialoma.

There are varied causes of lesions of the facial nerve: 75% of them is idiopathic paralysis or Bell paralysis (1), then there are injuries, diseases of the ears (otitis media and externa, otic zoster) and carcinomas of neuron VII, cerebellopontine angle tumors, tumors of the pons, of the petrosal bone, the middle ear, leukemias, diabetes, tumors of the salivary gland (2, 3, 4). Especially careful diagnosing is required for the cases of the lesions of the peripheral neuron n. VII, where, despite conventional treatment, there is no distinct improvement or where it is necessary to determine the right etiopatogenic factor among several possible ones. The patient under observation merits particular attention because it is necessary to determine the underlying cause of the lesion of the peripheral neuron of the facial nerve.