PMC10246372_01
Preoperative brain magnetic resonance imaging showing a right-sided cerebellopontine angle (CPA) meningioma with associated effacement of the ipsilateral CPA cistern and cerebellar compression on gadolinium-enhanced T1-weighted image (a and b) and constructive interference in steady state (c). Brain computed tomography scan showing no calcification in the tumor and normalsized and symmetrical internal acoustic meatus (d and e). Preoperative pure-tone audiometry showing 90 decibels in the right ear (f).
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F1
CPA meningioma measuring 26 x 15 x 30 mm filling the cistern and significant cerebellar peduncular compression [Figures 1a-c]. Computed tomography (CT) scan showed no calcification and normal-sized and symmetrical internal acoustic meatus [Figures 1d and e]. He had sensorineural hearing loss in the right ear, pure-tone audiometry (PTA) was 90 decibels (dB), and the speech discrimination test was 0 (AAO-HNS class D) [Figure 1f].
Postoperative brain magnetic resonance imaging showing adequate removal of the tumor with small remnant of the tumor around the facial-vestibulocochlear nerve complex (a and b). Postoperative pure-tone audiometry showing significant improvement in the right ear (c).
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F2
Postoperative MRI showed satisfactory tumor excision with small remnant of the tumor around the rihgt facial-vestibulocochlear nerve complex [Figures 2a and b]. An audiometry examination repeated 2 months after discharge showed significant improvement in hearing with PTA 18.8 dB and speech discrimination score (SDS) 100% (AAO-HNS Class A) [Figure 2c].