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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 4 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 4

From: Unusual case of skull base adenoid cystic carcinoma presenting as skull base osteomyelitis: case report

Fig. 4

A 66-year-old male (→ showing the following imaging features in axial section) right malignant otitis externa with oto-mastoiditis and skull base osteomyelitis. Shows heterodense soft tissue density lesion in the external auditory canal, mastoid air cells extending to the middle ear cavity with involvement of Prussak’s space and epitympanic recess with erosion of external auditory canal, tympanic membrane, scutum, petro-mastoid and tympanic parts of right temporal bone, right inferolateral part of clivus, walls of right hypoglossal canal, anterior wall of posterior cranial fossa and tympanic part of right facial canal; Partial erosion of incus and stapes. Rarefaction of squamous and petro-mastoid parts of right temporal bone

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