PMC10081562_01
Deviation of the tongue to the left side and hemiatrophy of the left half of the tongue
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PMC10081562_01_AIAN-26-76-g001.jpg
F1
On neurological examination, she had dysarthria with deviation of the tongue to the left side and hemiatrophy of the left half of the tongue [Figure 1].
Large dumbbell-shaped solid cystic lesion in the left perimedullary cistern along the course of the left hypoglossal nerve appearing hyperintense on T2 (a, c) and iso- to hypo-intense on T1 (b). On post-contrast study, it showed heterogenous enhancement (d). Posteriorly, it was causing a mass effect over the medulla and cervico-medullary junction (e). Secondary hemiatrophy of the left half of the tongue with fatty infiltration and prolapse of left hemi-tongue into the oropharynx (f)
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PMC10081562_01_AIAN-26-76-g002.jpg
F2
The lesion appeared hyperintense on T2-weighted imaging (T2W) [Figure 2a, 2c] and iso- to hypo-intense on T1-weighted imaging (T1W) [Figure 2b]. On post contrast images, it showed heterogenous enhancement [Figure 2d]. Posteriorly, it was causing a mass effect over the medulla and cervico-medullary junction [Figure 2e].