This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Pathology
Which of the following is a histological feature of whipple's disease 
Select and explain. 
A. Infiltration of histiocytes in the lamina propria., B. Granuloma in the lamina, C. Macrophages with PAS (+)ve material inside the lamina propria, D. Eosinophils in the lamina propria
C: Macrophages with PAS (+)ve material inside the lamina propria
Answer: C: Macrophages with PAS (+)ve material inside the lamina propria 
Explanation: Histologically, the affected tissues show presence of characteristic macrophages containing PAS-positive granules and rod-shaped micro-organisms (Whipple's bacilli). These macrophages are predominantly present in the lamina propria of the small intestine and mesenteric lymph nodes. TEXT BOOK PF HARSH MOHAN SIXTH EDITION PAGE.576 IMAGE REF: