case_images: PMC6399545_01
case_images: Axial CT demonstrating opacification of the mastoid air cells (solid arrow), ethmoid sinuses (arrowhead), and maxillary sinuses (dashed arrow) in keeping with mastoiditis and sinusitis.
case_images: CRIRA2019-7876494.001.jpg
case_images: PMC6399545_01_CRIRA2019-7876494.001.jpg
case_images: fig1
case_images: The CT brain showed opacification of the mastoid air cells as well as the ethmoid and maxillary sinuses in keeping with mastoiditis and sinusitis (Figure 1).
case_images: High resolution axial CT showing a focal osseous defect in the posterior mastoid (arrow).
case_images: CRIRA2019-7876494.002.jpg
case_images: PMC6399545_01_CRIRA2019-7876494.002.jpg
case_images: fig2
case_images: There was pneumocephalus with extra-axial air in the posterior cranial fossa bilaterally (Figures 2 and 3) and a focal osseous defect in the posterior wall of the right mastoid air cells causing direct communication with the posterior cranial fossa (Figure 4).
case_images: Axial CT brain demonstrating pneumocephalus in the posterior cranial fossa (arrowhead).
case_images: CRIRA2019-7876494.003.jpg
case_images: PMC6399545_01_CRIRA2019-7876494.003.jpg
case_images: fig3
case_images: There was pneumocephalus with extra-axial air in the posterior cranial fossa bilaterally (Figures 2 and 3) and a focal osseous defect in the posterior wall of the right mastoid air cells causing direct communication with the posterior cranial fossa (Figure 4).
case_images: Axial CT brain demonstrating pneumocephalus in the posterior cranial fossa (arrow).
case_images: CRIRA2019-7876494.004.jpg
case_images: PMC6399545_01_CRIRA2019-7876494.004.jpg
case_images: fig4
case_images: There was pneumocephalus with extra-axial air in the posterior cranial fossa bilaterally (Figures 2 and 3) and a focal osseous defect in the posterior wall of the right mastoid air cells causing direct communication with the posterior cranial fossa (Figure 4).