“…Bilateral facial nerve paralysis unlike unilateral palsy is rarely idiopathic or Bell's. The variety of diseases that may present with bilateral facial paralysis are Guillain-Barre syndrome, [2] Lyme's disease, [3] sarcoidosis, [4] brain stem encephalitis, benign intracranial hypertension, leukemia, Melkersson-Rosenthal syndrome, diabetes mellitus, HIV infection, [5] syphilis, leprosy, [6] infectious mononucleosis, bilateral neurofibromas or trauma. Thus, the diagnostic workup for a patient with bilateral facial paralysis depends greatly on a meticulous history.…”