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 35 year old patient having persistent allergic rhinitis, asthmatic episodes with peripheral hypereosinophilia. Histological findings are shown below. What is your diagnosis? 
Select and explain. 
A. Behcet Disease, B. Churg-Strauss syndrome, C. Kawasaki disease, D. Buerger disease
B: Churg-Strauss syndrome
Answer: B: Churg-Strauss syndrome 
Explanation: The above image shows eosinophil-rich vasculitis. Churg-Strauss syndrome is a small-vessel necrotizing vasculitis classically associated with asthma, allergic rhinitis, lung infiltrates, peripheral hypereosinophilia, and extravascular necrotizing granulomas. Vascular lesions can be histologically similar to polyaeritis nodosa or microscopic polyangiitis, but are also characteristically accompanied by granulomas and eosinophils.