This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Suprasellar calcification with polyuria seen in ? 
Select and explain. 
A. Langerhan cell histocytosis, B. Medulloblastoma, C. Pineal oma, D. Craniopharyngioma
D: Craniopharyngioma
Answer: D: Craniopharyngioma 
Explanation: Ans. is 'd' i.e. Craniopharyngioma A suprasellar calcification is typical of craniopharyngioma Polyuria is d/t diabetes insipidus caused d/t compression by the tumor over pituitary. (Schwaz 7/e p1629 writes -"Clinically, patients with suprasellar tumors typically present with diabetes insipidus, visual difficulties, or endocrinopathy.")