Acoustic Schwannoma

Mri Sinus Infection

Fig. 11.38a High-resolution CTof the internal acoustic meatus reveals a funnel-shaped expansion of the right meatus (arrow). b The axial Tl-weighted MRI after contrast administration documents a small but strongly enhancing tumor at the entry

Internal Acoustic Meatus

of the internal acoustic meatus (arrow). c In another patient, the acoustic schwannoma is a lot larger and partially cystic (arrow).

Fig. 11.38a High-resolution CTof the internal acoustic meatus reveals a funnel-shaped expansion of the right meatus (arrow). b The axial Tl-weighted MRI after contrast administration documents a small but strongly enhancing tumor at the entry of the internal acoustic meatus (arrow). c In another patient, the acoustic schwannoma is a lot larger and partially cystic (arrow).

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