Ultrastructural changes in non-specific duodenitis

Figure 1 Photomicrograph of scanning electron microscopy of non-specific duodenitis. A: Villi in uniformed shapes of leaf-like or fingerlike pattern of normal duodenal bulb mucosa. ×200; B: Deformed and integrated villi (asterisk) and exudates (arrow) in degree II of NSD. ×100; C: Broadened, flattened, convoluted or cerebroid villi, masses or band-like mucus (arrows), ulcer-like defect on the surface of a villus (long arrow) in degree II of NSD. ×100; D: Ulcer-like defect (asterisk) and a few of H pylori (arrows) in mucus. ×2500; E: Mucus and severe erosion on the surface of mucosa in degree III of NSD. ×500; F: Macrophages (long arrow) and inflammatory cells (arrows) on the surface of mucosa and gastric metoplasia cells (asterisk). ×2200; G: H pylori in S-shape on the microvilli of epithelial cells (arrows). ×3200.