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Bilateral facial nerve palsy is relatively uncommon and may occur in association with a variety of neurological, infectious, neoplastic or degenerative disorders. Presentation is made of 4 cases of bilateral facial diplegia due to a refractory anemia with excess of blasts, a
Lyme disease and a tuberculoid leprosy. In one of these patients the cause of bilateral seventh-nerve palsy was unknown (Bell’s palsy). Facial palsy returned to normal after treatment with steroids in 3 patients. The patient with myelodysplastic syndrome did not show any improvement and died 6 months after diagnosis.