Fig. 1From: Whipple's disease: the great masquerader—a high level of suspicion is the key to diagnosisColonoscopy. Distal ileum. Lumpy white-colored villi (see also histopathological Figs. 5 and 6) caused by ectatic lymphatic vessels that are histologically usually infiltrated by PAS-positive histiocytes. Patient 1Back to article page