This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Reversible Cell Injury, Subject name: Pathology
A 56-year-old woman with a history of hyperlipidemia and hypeension develops progressive, right renal aery stenosis. Over time, this patient's right kidney is likely to demonstrate which of the following morphologic adaptations to paial ischaemia? 
Select and explain. 
A. Atrophy, B. Dysplasia, C. Hyperplasia, D. Hyperophy
A: Atrophy
Answer: A: Atrophy 
Explanation: The answer is A: Atrophy. Interference with blood supply to tissues is known as ischemia. Total ischemia results in cell death. Paial ischemia occurs after incomplete occlusion of a blood vessel or in areas of inadequate collateral circulation. This results in a chronically reduced oxygen supply, a condition often compatible with continued cell bility. Under such circumstances, cell atrophy is common. For example, it is frequently seen around the inadequately perfused margins of infarcts in the hea, brain, and kidneys. None of the other choices describe decreased organ size and function.