<prompt> Suprasellar calcification with polyuria seen in -Langerhan cell histocytosisMedulloblastomaPinealomaCraniopharyngioma  <response>: A suprasellar calcification is typical of craniopharyngioma Polyuria is dt diabetes insipidus caused dt compression by the tumor over pituitary. Schwaz 7e p1629 writes Clinically, patients with suprasellar tumors typically present with diabetes insipidus, visual difficulties, or endocrinopathy. Ref : Suttons Radiology 7e p1628 