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Figure 1: (a) MRI T1w sagittal postcontrast image shows enlargement of pituitary with thickened stalk, marked by an arrow (b) Homogeneous postcontrast enhancement and b/l parasellar extension (right > left) (c) MRI coronal T1w and T2w images showing parasellar T2 dark sign (d) MRI axial T1w postcontrast image showing right parasellar extension of lesion

Figure 1: (a) MRI T1w sagittal postcontrast image shows enlargement of pituitary with thickened stalk, marked by an arrow (b) Homogeneous postcontrast enhancement and b/l parasellar extension (right > left) (c) MRI coronal T1w and T2w images showing parasellar T2 dark sign (d) MRI axial T1w postcontrast image showing right parasellar extension of lesion