Features are consistent with a papillary craniopharyngioma which was confirmed histologically.
Histology:
Sections show a papillary tumor with a fibrovascular core covered by a multilayered collection of well-differentiated epithelial cells. The basal layer of cells show a degree of nuclear palisading and there are focal areas with a loose, microcystic pattern. There is no obvious keratin formation.
Final diagnosis: Suprasellar nodule; papillary craniopharyngioma.