Pathology Which of the following is a histological feature of Whipple’s disease? A Infiltration of histiocytes in the lamina propria B Granuloma in the lamina C Macrophages with PAS (+) material inside the lamina propria D Eosinophils in the lamina propria 💡 Explanation Which of the following is a histological feature of Whipple's disease? ✓ Correct Answer: C. Macrophages with PAS (+) material inside the lamina propria