PMC9560689_01
(1A) Computed tomography (CT) brain plain showed dilation of bilateral lateral ventricle suggestive of hydrocephalus at the time of admission. Fig. 1: (1B) T1 weighted with contrast MRI (Magnetic Resonance Imaging) showed 5.4 cm x 3.8 cm sized enhancing solid tumor in right CP angle with extension into the right IAM. (1C) T1 weighted MRI image showed a predominant hypointense lesion in the right cp angle region extending into IAM, with hyperintensity in the periphery of lesion with severe brain stem compression. (1D) T2 weighted image revealed a hyperintense lesion in the right CP angle with hypointensity in the periphery of lesion suggestive of an early subacute phase of blood with no brainstem signal changes. Figure 1(E,F,G) showed postoperative MRI- (1E) T1 weighted with Gadolinium contrast MRI showed small residue in right IAM, in (1F) T2 weighted image showed postoperative changes seen in the right cerebellum and no brain stem compression. (1G) showed resolution of hydrocephalus.
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The imaging revealed a large hematoma with lesion in the right CP angle region, compressing the brain stem along with hydrocephalus (Fig. 1A). T1 weighted image showed a predominant hypointense lesion in right CP angle region extending into internal acoustic meatus (IAM), with hyperintensity in the periphery, while T2 weighted image revealed central hyperintense lesion with hypointensity in the periphery suggestive of an early subacute phase of blood with significant brainstem compression. T1 weighted with gadolinium (Gd) contrast imaging revealed 5.4 x 3.8 cm enhancing solid content with multicystic component of tumor in right CP angle with extension into the right IAM (Fig. 1B-D). At 4 months follow up, MRI brain revealed small residue near right IAM (Fig. 1E-G).