Imaging and treatment
Imaging of temporal bone is not recommended to make a diagnosis of mastoiditis in children with characteristic clinical findings. When imaging is needed, contrast-enhanced computed tomography (CT) is best to help visualize changes in temporal bone. If intracranial complications are suspected, cranial MRI with contrast or cranial CT with contrast can be ordered (depending on availability).5
Conservative management with intravenous antimicrobial therapy and middle ear drainage with myringotomy is indicated for a child with uncomplicated acute or subacute mastoiditis. For patients with suppurative extracranial or intracranial complications, aggressive surgical management is needed.5
Treatment for this patient included craniotomy, evacuation of the epidural abscess, and mastoidectomy. A culture obtained from the abscess showed Streptococcus intermedius. He was treated with broad-spectrum antibiotics, including ceftriaxone, vancomycin, and metronidazole. Within a week of surgery, he was discharged from the hospital and continued antibiotic treatment for 6 weeks via a peripherally inserted central catheter line.