Gastrointestinal Tract

Duodenum, Gastrointestinal stromal tumour

Stomach, Inflammatory fibroid polyp

Appendix, Sessile serrated adenoma

Rectum, Hirschsprung disease, Calretinin stain

Rectum, Hirschsprung disease, ACE stain

Rectum, Hirschsprung disease, H&E stain

Small Intestine, Autoimmune enteropathy, FOXP3 stain

Large Intestine, Autoimmune enteropathy

Small Intestine, Autoimmune enteropathy

Appendix, Enterobius vermicularis, PASD stain

Appendix, Enterobius vermicularis, H&E stain

Appendix, Enterobius vermicularis, H&E stain

Anal canal, Malignant melanoma, HMB-45 stain

Anal canal, Malignant melanoma, Melan-A stain

Anal canal, Malignant melanoma, S100 stain

Anal canal, Malignant melanoma, Pankeratin stain

Anal canal, Malignant melanoma, H&E stain

Small intestine, Titanium-dioxide in macrophages (incidental)

Colon, Pseudomembranous colitis

Rectum, lymphangio-leiomyomatosis, SMA stain

Rectum, lymphangio-leiomyomatosis, HMB-45 stain

Rectum, lymphangio-leiomyomatosis, H&E stain

Rectum, Recto-sigmoid adenocarcinoma with large-vessel invasion, H&E stain

Rectum, Recto-sigmoid adenocarcinoma with large-vessel invasion, EVG stain

Colon, collagenous colitis

Gastroesophageal junction, Helicobacter heilmannii gastritis, Helicobacter stain

Gastroesophageal junction, Helicobacter heilmannii gastritis, H&E stain

Stomach, Lipoma

Rectum, squamous cell carcinoma

Esophagus, Barrett's esophagus

Colon, Amebiasis

Small Intestine, Peutz-Jeghers polyp

Stomach, Heterotopic pancreatic tissue

Stomach, helicobacter pylori gastritis, Warthin-Starry stain

Stomach, helicobacter pylori gastritis, H&E stain

Duodenum, giardiasis

Esophagus, Eosinophilic esophagitis

Colon, Clostridium difficile associated pseudomembranous colitis

Colon, traditional serrated adenoma

Colon, amebiasis

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