Encephalocele masquerading as nasal polyp.
D004660:Encephalitis; D004677:Encephalocele; D004673:Encephalomyelitis, Acute Disseminated / Q000175:diagnosis*; D006801:Humans; D009298:Nasal Polyps / Q000175:diagnosis*
ENCEPHALITIS, POST-VACCINAL/diagnosis; NASAL POLYPS/diagnosis