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An
outline of the anatomy and normal histology of the stomach for
pathologists. Reporting of gastric biopsies (non-neoplastic gastric lesions). Pathology and pathogenesis of peptic ulcer. Helicobacter pylori associated(TypeB) Gastritis Reactive /Reflux/ Chemical Gastritis (Type C) Other Non-Neoplastic Gastric Lesions Benign tumour and tumour- like lesions Gastrointestinal Stromal Tumour |
| Pathogens commonly affecting Small Intestine: |
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Lymphocytic
gastritis is associated with coeliac disease (specially antral
prdominant gastritis) and non-coeliac small intestinal intraepithelial
lymphocytosis with malabsorption. - Lymphocytic gastritis is also associated with Helicobacter pylori infection (specially corpus predominant lymphocytic gastritis). - Eradication of H. pylori plays an important role in the treatment of lymphocytic gastritis. - In the severe form lymphocytic gastritis is diagnosed as varioliform gastritis. Endoscopic features : Enlarged mucosal folds, multiple, discrete mucosal nodules or plaques with central umbilications , erosions or apthoid ulcers and surrounding hyperemia. Microscopic features:
-Intraepithelial T cells (CD8 positive) in the surface and superficial
pit epithelium. Pathologists
should be able to distinguish lymphocytic gastritis from B-cell
lymphoepithelial lesions seen in MALT lymphomas.
Visit: Gastric Lymphoma |
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Abstracts:
Lymphocytic gastritis and protein losing gastropathy. Dig Liver Dis 2000 Jun-Jul; 32(5):422-5.
Varioliform gastritis: frequency
and relationship with lymphocytic gastritis.Arq
Gastroenterol. 2000 Jan-Mar;37(1):7-12.
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- Normal
Histology of the Large Intestine - Interpretation of Large Intestinal Biopsies - Assessment of abnormalities -1 (lumen, surface epithelium, subepithelial zone) - Assessment of abnormalities - 2 (crypt density , architecture and epithelium) - Assessment of abnormalities - 3 (changes in the lamina propria,muscularis mucosae and submucosa) |
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NORMAL HISTOLOGY OF ESOPHAGUS AN APPROACH TO THE REPORTING OF ESOPHAGEAL BIOPSIES BARRETT'S ESOPHAGUS (INTESTINAL METAPLASIA DYSPLASIA & ADENOCARCINOMA) BENIGN TUMOURS AND TUMOUR - LIKE CONDITIONS OF ESOPHAGUS 1. SQUAMOUS PAPILLOMA OF THE ESOPHAGUS 2. INFLAMMATORY FIBROID POLYP OF THE ESOPHAGUS 4. GRANULAR CELL TUMOUR OF THE ESOPHAGUS REPORTING OF ESOPHAGEAL RESECTION SPECIMENS SQUAMOUS EPITHELIAL DYSPLASIA INCLUDING SQUAMOUS CELL CARCINOMA IN-SITU OF THE ESOPHAGUS |
Normal histology of the small intestine for anatomic pathologists An approach to evaluation of small intestinal biopsy. Enteropathy-associated T-cell lymphoma Lesions causing small bowel obstruction and bleeding |