This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
Which of the following is a pathological calcification? 
Select and explain. 
A. Suprasellar calcification, B. Basal ganglia calcification, C. Pineal body calcification, D. Choroid calcification
A: Suprasellar calcification
Answer: A: Suprasellar calcification 
Explanation: A brain tumor derived from the pituitary gland, derived from nests of epithelial cells of Rathke's pouch. Calcium deposits are evident in x-ray. suprasellar tumors form a separate entity as far as .... These tumors are paly solid and cystic and can have dense areas of calcification. Ref Robbins 9/e p 16