This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pathology
Medial calcification is seen in 
Select and explain. 
A. Atherosclerosis, B. Aeriolosclerosis, C. Monckebergs sclerosis, D. Dissecting aneurysm
C: Monckebergs sclerosis
Answer: C: Monckebergs sclerosis 
Explanation: Monckeberg medial sclerosis is characterized by the presence of calcific deposits in muscular aeries, typically in persons older than 50. The lesions do not encroach on the vessel lumen and usually are not clinically significant. ( Robbins Basic Pathology, 9 th edition, page 335)