PMC4438144_01
Magnetic resonance imaging of brain (axial view) showing a lobulated heterogeneous mass involving the medial left cerebellar hemisphere, measuring 4.0 x 3.5 x 2.5 cm associated with edema crossing the midline to the right cerebellar hemisphere, and compressing the fourth ventricle (the first case).
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fig1
The mass was associated with surrounding edema, crossing the midline to the right cerebellar hemisphere and compressing the fourth ventricle (Figure 1).
Hematoxylin and Eosin staining showing follicular pattern of papillary thyroid carcinoma (the first case).
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fig2
Histopathology revealed papillary fronds with fibrovascular core lined by cuboidal tumor cells, with inclusion bodies (Figure 2).
PMC4438144_02
Computed tomography of brain (axial view) showing a 3.2 x 3.7 cm homogeneous contrast enhancing mass in the inferior vermis with extension into the left cerebellar hemisphere and brainstem causing hydrocephalus (the second case).
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fig3
Computed tomography of brain showed a 3.2 x 3.7 cm homogeneous contrast enhancing mass in the inferior vermis with extension into the left cerebellar hemisphere and brainstem causing hydrocephalus (Figure 3).
Hematoxylin and Eosin staining showing tall papillary cells (height at least twice or thrice their width), papillary thyroid carcinoma (the second case).
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fig4
PMC4438144_03
Magnetic resonance imaging (axial view) of brain showing a 4 x 4 cm heterogeneous mass in the left cerebellar hemisphere associated with edema (the third case).
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fig5
MRI brain revealed a 4 x 4 cm heterogeneous mass in left cerebellar hemisphere associated with edema (Figure 5).
Hematoxylin and Eosin showing dark stained colloid (classic variant papillary thyroid cancer) (the third case).
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fig6
PTC, classic variant (Figure 6). Postoperative IMRT of dose 50 Gy in 25 fractions was given to the tumor, without any grade 3 toxicity, followed by RAI ablation dose of 150 mCi.