A Pediatric Radiology textbook and Pediatric Radiology digital library
Acute Mastoiditis
Etiology: most common complication of acute otitis media
Imaging: opacification of mastoid air cells
Complications: — Coalescent mastoiditis is mastoiditis with osteomyelitis of mastoid tegmen which can cause epidural abscess and empyema / meningitis / cerebritis / abscess / sigmoid sinus thrombosis — Bezold’s abscess is coalescent mastoiditis, osteomyelitis of squamosal temporal bone, extracranial abscess, inframastoid abscess deep to sternocleidomastoid muscle + trapezius