title: Synopsis of endoscopic and related morphological findings in Whipple's disease.
abstract: Whipple's disease is characterized by typical endoscopic lesions in the duodenal wall. They consist of a thickened and inflamed mucosa with yellowish-white spots, in part solitary, in part confluent. Petechial hemorrhages mark the high mucosal vulnerability. Clumsy and dilated villi with ectatic lymph vessels and PAS-positive macrophages are the corresponding histologic feature. In the ultrastructure numerous rod-shaped micro-organisms are evident. Following treatment with tetracycline the mucosal surface normalizes rapidly, the bacteria disappear, whereas other histologic changes remain over a longer period of time.
mesh_terms: D001419:Bacteria / Q000648:ultrastructure; D004386:Duodenum / Q000473:pathology* / Q000648:ultrastructure; D004724:Endoscopy; D006801:Humans; D013752:Tetracycline / Q000627:therapeutic use; D008061:Whipple Disease / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*
chemical_list: D013752:Tetracycline