<prompt> Which of the following is a histological featureof ; Whipple;s disease-Infiltration of histocytes in the lamina propriaGranuloma in the laminaMacrophages with PAS material inside the lamina propriaEosinophils in the lamina propna  <response>: Davidson;s principles and practice of medicine 22nd edition. whipple;s disease caused by tropheryma whipplei ,become resident within macrophage of bowel mucosa.Vili are widened containing macrophages in the lamina proprio which stains positive with PAD. 