PMC6744731_01
Magnetic resonance imaging images (a,b) Pre-treatment T1-weighted gadolinium-enhanced MRI (axial and coronal images)
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F1
T1-weighted gadolinium- enhanced magnetic resonance imaging (MRI) revealed diffuse contrast enhancement of the meninges, mainly in the posterior cranial fossa, with compression of the cerebellum by the significantly thickened meninges [Figure 1a,b].
(a) Preoperative three-dimensional computed tomography. (b) Postoperative three-dimensional computed tomography. The occipital bone has been removed, and the foramen magnum has been opened.
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F2
The first step in the treatment was to relieve intracranial hypertension, and decompression of the posterior cranial fossa was performed [Figure 2].
Magnetic resonance imaging images (a,b) T1-weighted gadolinium-enhanced MRI (axial and coronal images) after 2 weeks. Diffuse enhancement of the meninges has improved markedly. (c,d) T1-weighted gadolinium-enhanced MRI (axial and sagittal images) after 2 months. Diffuse enhancement of the meninges has almost disappeared.
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As early as 2 weeks later, the diffuse abnormal signal enhancement across her tissues shrunk dramatically on T1-weighted gadolinium- enhanced MRI after starting this new regimen [Figure 3a,b]. Further imaging revealed that the LM had almost disappeared on MRI by 2 months of therapy [Figure 3c,d].