This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Pathology, Subject name: Pathology
A 60-year-old man has his left forearm amputated because he has invasive rhabdomyosarcoma. The pathologist notes calcification in the wall of the radial aery, which otherwise appears unremarkable. Which of the following is the appropriate diagnosis? 
Select and explain. 
A. Churg-Strauss disease, B. Complicated atherosclerotic plaque, C. Fibromuscular dysplasia, D. Monckeberg medial sclerosis
D: Monckeberg medial sclerosis
Answer: D: Monckeberg medial sclerosis 
Explanation: Monckeberg medial sclerosis is characterized by calcification of the media of large and medium-sized aeries of older persons who are not otherwise affected by atherosclerosis . On gross examination, the involved aeries are hard and dilated. These aerial changes are usually asymptomatic. None of the other choices display calcification.