case_images: PMC9836059_01
case_images: Computed tomography showing obliteration of the mastoid and tympanic cavity with ossicular erosion compatible with otomastoiditis.
case_images: acmi-4-436-g001.jpg
case_images: PMC9836059_01_acmi-4-436-g001.jpg
case_images: F1
case_images: A contrast-enhanced computed tomography (CT) scan showed right mastoid opacification, swelling of adjacent soft tissues, ossicular erosion, extension of the infection to the extradural space and partial thrombosis of the right transverse sinus (Fig. 1).
case_images: Magnetic resonance image (T1-weighted sequence): Thrombosis of right sigmoid sinus. Inflammatory thickening of dura-mater with involvement of right temporal basal region. Oedema and contrast enhancement of retroauricular and occipital soft tissues.
case_images: acmi-4-436-g002.jpg
case_images: PMC9836059_01_acmi-4-436-g002.jpg
case_images: F2
case_images: Magnetic resonance imaging (MRI) was also performed and revealed signs of acute mastoiditis with intracranial empyema in the transverse and sigmoid sinus and there was no evidence of involvement of the brain parenchyma (Fig. 2).