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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 1 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 1

From: Spontaneous cerebrospinal fluid fistula secondary to hyper-pneumatized paranasal sinuses and skull base: two case reports

Fig. 1

A 26-year-old female presented with history of right sided rhinorrhoea. A Plain CT PNS and temporal bone axial section showing bilateral hyper-pneumatized petrous bones with overcrowding of the right mastoid air cells (red arrow), opacification of the hyper-pneumatized petrous bone (red arrow head) and mild right ethmoid sinusitis. B Plain CT temporal bone coronal section demonstrating the overcrowding of the right mastoid air cells by mucosal thickening (red arrow). C Plain CT PNS and temporal bone axial section demonstrating the scalloping along the antero-medial aspect of the right petrous bone (red arrow)

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