Mastoid bone fracture presenting as unusual delayed onset of facial nerve palsy.
Delayed-onset facial nerve paralysis is a rather uncommon complication of a mastoid bone fracture for children younger than 10 years. We routinely arrange a cranial computed tomography (CT) for patients encountering initial loss of consciousness, severe headache, intractable vomiting, and/or any neurologic deficit arising from trauma to the head. However, minor symptomatic cranial nerve damage may be missed and the presenting symptom diagnosed as being a peripheral nerve problem. Herein, we report a case of a young boy who presented at our emergency department (ED) 3 days subsequent to his accident, complaining of hearing loss in the right ear and paralysis of the ipsilateral face. Unpredictably, we observed his cranial CT scan revealing a linear fracture of the skull over the right temporal bone involving the right mastoid air cells. The patient was treated conservatively and recovered well without any adverse neurologic consequences. We emphasize that ED physicians should arrange a cranial CT scan for a head-injured child with symptomatic facial nerve palsy, even if there are no symptoms such as severe headache, vomiting, Battle sign, and/or initial loss of consciousness.
Hsu
Ko-Chiang
KC
Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei Neihu 114, Taiwan.
Wang
Ann-Ching
AC
Chen
Shyi-Jou
SJ
D000058:Accidental Falls; D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D002648:Child; D005158:Facial Paralysis / Q000188:drug therapy / Q000209:etiology*; D050723:Fractures, Bone / Q000150:complications* / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008416:Mastoid / Q000000981:diagnostic imaging / Q000293:injuries*; D014057:Tomography, X-Ray Computed
D000305:Adrenal Cortex Hormones