Professor Fatima Carneiro is a pathologist and researcher in the field of gastrointestinal and liver pathology. She received her medical degree in 1978 at the Medical Faculty of Porto, Portugal, where she is currently serving as a full professor of pathology. Since 1993, she has been a Senior Researcher at the Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup/i3S). Her research is directed towards the understanding of the etiopathogenesis of gastric cancer and the molecular basis of gastric carcinoma development. Professor Carneiro is a Past President of the European Society of Pathology, Coordinator of the Portugese Network of Tumour Banks, council member of the International Gastric Cancer Association and a Fellow of the European Academy of Cancer Sciences. She has co-authored ca. 300 peer-reviewed publications ("h factor". 54- Scopus).Paula Chaves (born in 1953) graduated in medicine in 1978. She obtained her Board Certification as Pathologist in 1988 and as Consultant Pathologist in 1993. Presently, she is Senior Pathologist at the Instituto Portugues de Oncologica de Lisboa de Francisco Gentil (IPOLFG EPE). She did her PhD in 2001 at the Faculdade de Ciencias Medicas, Universidade Nova de Lisboa. Currently, she is Full Professor of Pathology at the Faculdade de Ciencias da Saude, niversidade da Beira Interior, since 2007. Before, she was Auxiliar Professor of Pathology at the Faculdade de Ciencias Medicas, Universidade Nova de Lisboa, since 1993. The mainstream of her professional career lies in the area of Gastrointestinal Pathology. She has published over 80 peer-reviewed papers and has contributed to almost 8 books in this field. Her research interest is in Barrett`s Esophagus, the premalignant condition for esophageal adenocarcima. Actually, her research work contributed for the understanding of differentiation of the distinct cellular phenotypes present in Barrett`s epithelium and theirrelationship to cancer. Professor Paula Chaves is presently the Director of the Research Center of the Instituto Portugues de Oncologica de Lisboa de Francisco Gentil (IPOLFG EPE).Arzu Ensari finished her training in Pathology in Ankara in 1991, before moving to the UK to pursue a PhD on "Cellular and Molecular Pathology of Gluten Sensitivity" under the supervision of Dr. Michael N. Marsh from 1991 to 1994. She worked with Prof. Yo Kato (Japan) on GI cancer and precursor lesions for three months in 1995. Since then Dr. Ensari has been engaged in gastrointestinal pathology at the Department of Pathology, Ankara University Medical School. In 2008 she worked in Toronto, Canada as a visiting professor with Prof. Robert Riddell, mainly on IBD. Dr. Ensari is a former chair of the GI Pathology working group of the ESP, and is a faculty member of the EScoP GI Pathology working team. She is currently working as a full-time Professor at the Department of Pathology, Ankara University Medical School. Dr. Ensari has published many articels and book chapters on GI pathology. Her major research interests include malabsorption, IBD, polyps and colorectal cancer.

• Abetalipoproteinemia.- Achalasia, esophagus.- Acute Gastritis.- Adenoacanthoma.- Adenocarcinoma, Upper Gastro-Intestinal Tract.- Adenoid Cystic Carcinoma, Esophageal.- Adenoma, Colorectal.- Adenoma, Upper Gastro-Intestinal Tract.- Adenosquamous carcinoma, Upper GI tract.- Adhesions.- Adipose Tissue Tumors, Stomach.- Amyloidosis, Gastro-Intestinal.- Anal adenocarcinoma.- Angiodysplasia.- Antibiotic Associated Colitis.- Antrum.- Anus.- Appendiceal Tumors.- Appendicitis.- Appendix.- Autoimmune Gastritis.- Bacterial Enterocolitis.- Bacterial Overgrowth Syndrome.- Barium Sulphate, Oesophageal Inclusions.- Barrett`s Esophagus.- Basal cell carcinoma of the anal margin.- Basaloid-Squamous Carcinoma, Upper GI Tract.- Cameron`s Ulcer.- Campylobacter Enterocolitis.- Carcinoma, Colorectal.- Carcinoma, Periampullary.- Carcinoma, Small Intestine.- Cardia.- Chagas Disease, Gastro-Intestinal Aspects.- CHARGE syndrome, Esophagus.- Cholera.- Choriocarcinoma, Gastro-Intestinal.- Chronic Gastritis.- C-Kit(CD117), Gastrointestinal Stromal Tumors (GISTs).- Coeliac Disease.- Collagen Vascular Disorders, Esophagus.- Collagenous Colitis.- Collagenous Gastritis.- Colon.- Condyloma, Anal.- Cowden`s Syndrome.- Crohn`s Disease.- Cronkhite-Canada Syndrome.- Cushings and Curlings Ulcer.- Diaphramatic Hernia.- Dieulafoy`s Lesion.- Disaccharidase Deficiency.- Diversion Colitis.- Diverticular Colitis.- Diverticular Disease, Colon.- Diverticulum Epiphrenic.- Drug Induced Esophagitis.- Drug Induced Gastritis.- Drug-Induced Intestinal Injury.- Duplication, Esophagus.- Duplication, Intestinal.- Dysentery, Bacillary.- E-cadherin, Gastric Carcinoma.- Enteropathy, AIDS.- Enteropathy, Neonatal (congenital).- Eosinophilic Colitis.- Eosinophilic Esophagitis.- Eosinophilic Gastritis.- Epstein-Barr Virus (EBV), Esophagitis.- Esophageal Atresia.- Esophagitis, Chemotherapy Induced.- Esophagitis, In Crohn`s Disease.- Fundic Gland Polyp.- Gangliocytic Paraganglioma, Duodenal.- Ganglioneuroma, Gastrointestinal.- Gastric epithelial dysplasia.- Gastric Heterotopia.- Gastric Stump.- Gastritis Cystica Polyposa/Profunda.- Gastroesophageal Junction.- Gastroesophageal Reflux Disease (GERD).- Gastrointestinal Autonomic Nerve Tumor.- Gastrointestinal Stromal Tumor.- Gastroparesis.- Gastropathy, Portal Hypertension.- GAVE (Gastric Antral Vascular Ectasia).- Giardiasis.- Glomus Tumor, Gastro-Intestinal.- Glycogenic Ancanthosis.- Goblet cells.- Graft-Versus-Host Disease.- Granular Cell Tumor, Gastro-Intestinal.- Granulomatous Gastritis.- Hamartomatous Polyps.- Helicobacter Heilmannii Infection.- Helicobacter Pylori Infection.- Hemorrhoid Hernias.- Hiatus Hernia, Acquired, Para-Esophageal (Rolling).- Hirschsprung`s Disease.- Hyperplastic Polyps.- Immunoproliferative Small Intestinal Disease.- Infarction,Intestinal.- Infectious Colitis.- Infectious Esophagitis.- Inflammatory Bowel Disease.- Inflammatory Cloacogenic Polyp.- Inflammatory Fibroid Polyp, Lower Gastro-Intestinal Tract.- Inflammatory Fibroid Polyp, Upper Gastro-Intestinal Tract.- Inflammatory Myofibroblastic Tumor, Upper Gastro-Intestinal Tract.- Inperforate Anus.- Intestinal Atresia.- Intestinal Immune System.- Intestinal Lymphangiectasia.- Intestinal Malrotation.- Intestinal metaplasia.- Intestinal Obstruction.- Intestinal Pseudoobstruction.- Intestinal Tuberculosis.- Intusseption.- Ischaemic Bowel Disease.- Ischaemic Colitis.- Ischaemic Gastritis.- Juvenile Polyp, Upper Gastro-Intestinal Tract.- Juvenile Polyposis Syndrome, Lower Gastro-Intestinal Tract.- Lewy Bodies, Achalasia.- Lymphocytic Colitis.- Lymphocytic Esophagitis.- Lymphocytic Gastritis.- Lymphoepithelial-Like Carcinoma.- Lymphoma, Gastrointestinal.- Lynch Syndrome.- Malabsorption.- Malignant Atrophic Papulosis (Degos`Disease).- Malignant.- Melanoma, Anus.- Mallory Weiss Lacerations, Esophageal.- Meckel`s Diverticulum.- Menetrier`s Disease (Hypertrophic Gastropathy).- Microscopic Colitis.- Microvillus Inclusion Disease.- Mucinous Carcinoma, Upper Gastro-Intestinal Tract.- Mucinous Cystadenocarcinoma, Appendix.- Mucinous Cystadenoma, Appendix.- Mucins.- Mucocele, Appendix.- Mucoepidermoid Carcinoma, esophageal.- Mucosal Prolapsus Syndrome.- Necrotizing Enterocolitis.- Neuroendocrine neoplasms of the anus.- Neuroendocrine Tumor, Colon and Rectum.- Neuroendocrine Tumor, Esophagus.- Neuroendocrine Tumor, Gastric.- Neuroendocrine Tumor, Small Intestine.- Neuropenic Colitis.- Nonsteroidal Antiinflammatory Drug Injury.- Nonsteroidal anti-inflammatory drug (NSAIDs).- Pagetas disease of the anus.- Pancreatic Heterotopia.- Parasitic Colitis.- Pemphigoid, Bullous, Esophageal.- Pemphigus Vulgaris, Esophageal.- Peptic Duodenal Disease.- Peptic Ulcer.- Peutz-Jeghers Syndrome.- Plummer-Vinson Syndrome.- Polyp, Gastrointestinal.- Polyposis Syndromes.- Pseudodiverticulum (Pseudodiverticula), Esophageal.- Pseudoepitheliomatous Hyperplasia, Esophageal.- Pseudogoblet Cells.- Pyloric Gland Adenoma.- Pyloric Stenosis.- Radiation Colitis.- Radiation inducedEsophagitis.- Radiation Therapy Injury.- Rectum.- Salmonellosis.- Sarcoidosis, Gastro-Intestinal.- Scleroderma, Esophageal.- Serrated Polyposis Syndrome.- Shigellosis.- Short gut syndrome.- Signet Ring Cell Carcinoma.- Small Intestine.- Solitary Rectal Ulcer Syndrome.- Squamous Cell Carcinoma, Anus.- Squamous Cell Carcinoma, Upper Gastro-Intestinal Tract.- Squamous Papilloma, Upper Gastro-Intestinal Tract.- Tropical Sprue.- Tubular Adenocarcinoma.- Tufting Enteropathy.- Typhoid Fever.- Ulcerative Colitis.- Uremic Gastropathy.- Varices.- Vasculitis, Upper Gastro-Intestinal Tract.- Verrucous carcinoma/Giant condyloma of Buschke and Lowenstein.- Viral Colitis.- Viral Gastroenteritis.- Volvulus.- Xanthoma, Upper Gastro-Intestinal Tract.- Zenker`s Diverticulum.- Z-Line.- Zollinger-Ellison-Syndrome.

Professor Fatima Carneiro is a pathologist and researcher in the field of gastrointestinal and liver pathology. She received her medical degree in 1978 at the Medical Faculty of Porto, Portugal, where she is currently serving as a full professor of pathology. Since 1993, she has been a Senior Researcher at the Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup/i3S). Her research is directed towards the understanding of the etiopathogenesis of gastric cancer and the molecular basis of gastric carcinoma development. Professor Carneiro is a Past President of the European Society of Pathology, Coordinator of the Portugese Network of Tumour Banks, council member of the International Gastric Cancer Association and a Fellow of the European Academy of Cancer Sciences. She has co-authored ca. 300 peer-reviewed publications ("h factor". 54- Scopus).Paula Chaves (born in 1953) graduated in medicine in 1978. She obtained her Board Certification as Pathologist in 1988 and as Consultant Pathologist in 1993. Presently, she is Senior Pathologist at the Instituto Portugues de Oncologica de Lisboa de Francisco Gentil (IPOLFG EPE). She did her PhD in 2001 at the Faculdade de Ciencias Medicas, Universidade Nova de Lisboa. Currently, she is Full Professor of Pathology at the Faculdade de Ciencias da Saude, niversidade da Beira Interior, since 2007. Before, she was Auxiliar Professor of Pathology at the Faculdade de Ciencias Medicas, Universidade Nova de Lisboa, since 1993. The mainstream of her professional career lies in the area of Gastrointestinal Pathology. She has published over 80 peer-reviewed papers and has contributed to almost 8 books in this field. Her research interest is in Barrett`s Esophagus, the premalignant condition for esophageal adenocarcima. Actually, her research work contributed for the understanding of differentiation of the distinct cellular phenotypes present in Barrett`s epithelium and theirrelationship to cancer. Professor Paula Chaves is presently the Director of the Research Center of the Instituto Portugues de Oncologica de Lisboa de Francisco Gentil (IPOLFG EPE).Arzu Ensari finished her training in Pathology in Ankara in 1991, before moving to the UK to pursue a PhD on "Cellular and Molecular Pathology of Gluten Sensitivity" under the supervision of Dr. Michael N. Marsh from 1991 to 1994. She worked with Prof. Yo Kato (Japan) on GI cancer and precursor lesions for three months in 1995. Since then Dr. Ensari has been engaged in gastrointestinal pathology at the Department of Pathology, Ankara University Medical School. In 2008 she worked in Toronto, Canada as a visiting professor with Prof. Robert Riddell, mainly on IBD. Dr. Ensari is a former chair of the GI Pathology working group of the ESP, and is a faculty member of the EScoP GI Pathology working team. She is currently working as a full-time Professor at the Department of Pathology, Ankara University Medical School. Dr. Ensari has published many articels and book chapters on GI pathology. Her major research interests include malabsorption, IBD, polyps and colorectal cancer.

• Abetalipoproteinemia.- Achalasia, esophagus.- Acute Gastritis.- Adenoacanthoma.- Adenocarcinoma, Upper Gastro-Intestinal Tract.- Adenoid Cystic Carcinoma, Esophageal.- Adenoma, Colorectal.- Adenoma, Upper Gastro-Intestinal Tract.- Adenosquamous carcinoma, Upper GI tract.- Adhesions.- Adipose Tissue Tumors, Stomach.- Amyloidosis, Gastro-Intestinal.- Anal adenocarcinoma.- Angiodysplasia.- Antibiotic Associated Colitis.- Antrum.- Anus.- Appendiceal Tumors.- Appendicitis.- Appendix.- Autoimmune Gastritis.- Bacterial Enterocolitis.- Bacterial Overgrowth Syndrome.- Barium Sulphate, Oesophageal Inclusions.- Barrett`s Esophagus.- Basal cell carcinoma of the anal margin.- Basaloid-Squamous Carcinoma, Upper GI Tract.- Cameron`s Ulcer.- Campylobacter Enterocolitis.- Carcinoma, Colorectal.- Carcinoma, Periampullary.- Carcinoma, Small Intestine.- Cardia.- Chagas Disease, Gastro-Intestinal Aspects.- CHARGE syndrome, Esophagus.- Cholera.- Choriocarcinoma, Gastro-Intestinal.- Chronic Gastritis.- C-Kit(CD117), Gastrointestinal Stromal Tumors (GISTs).- Coeliac Disease.- Collagen Vascular Disorders, Esophagus.- Collagenous Colitis.- Collagenous Gastritis.- Colon.- Condyloma, Anal.- Cowden`s Syndrome.- Crohn`s Disease.- Cronkhite-Canada Syndrome.- Cushings and Curlings Ulcer.- Diaphramatic Hernia.- Dieulafoy`s Lesion.- Disaccharidase Deficiency.- Diversion Colitis.- Diverticular Colitis.- Diverticular Disease, Colon.- Diverticulum Epiphrenic.- Drug Induced Esophagitis.- Drug Induced Gastritis.- Drug-Induced Intestinal Injury.- Duplication, Esophagus.- Duplication, Intestinal.- Dysentery, Bacillary.- E-cadherin, Gastric Carcinoma.- Enteropathy, AIDS.- Enteropathy, Neonatal (congenital).- Eosinophilic Colitis.- Eosinophilic Esophagitis.- Eosinophilic Gastritis.- Epstein-Barr Virus (EBV), Esophagitis.- Esophageal Atresia.- Esophagitis, Chemotherapy Induced.- Esophagitis, In Crohn`s Disease.- Fundic Gland Polyp.- Gangliocytic Paraganglioma, Duodenal.- Ganglioneuroma, Gastrointestinal.- Gastric epithelial dysplasia.- Gastric Heterotopia.- Gastric Stump.- Gastritis Cystica Polyposa/Profunda.- Gastroesophageal Junction.- Gastroesophageal Reflux Disease (GERD).- Gastrointestinal Autonomic Nerve Tumor.- Gastrointestinal Stromal Tumor.- Gastroparesis.- Gastropathy, Portal Hypertension.- GAVE (Gastric Antral Vascular Ectasia).- Giardiasis.- Glomus Tumor, Gastro-Intestinal.- Glycogenic Ancanthosis.- Goblet cells.- Graft-Versus-Host Disease.- Granular Cell Tumor, Gastro-Intestinal.- Granulomatous Gastritis.- Hamartomatous Polyps.- Helicobacter Heilmannii Infection.- Helicobacter Pylori Infection.- Hemorrhoid Hernias.- Hiatus Hernia, Acquired, Para-Esophageal (Rolling).- Hirschsprung`s Disease.- Hyperplastic Polyps.- Immunoproliferative Small Intestinal Disease.- Infarction,Intestinal.- Infectious Colitis.- Infectious Esophagitis.- Inflammatory Bowel Disease.- Inflammatory Cloacogenic Polyp.- Inflammatory Fibroid Polyp, Lower Gastro-Intestinal Tract.- Inflammatory Fibroid Polyp, Upper Gastro-Intestinal Tract.- Inflammatory Myofibroblastic Tumor, Upper Gastro-Intestinal Tract.- Inperforate Anus.- Intestinal Atresia.- Intestinal Immune System.- Intestinal Lymphangiectasia.- Intestinal Malrotation.- Intestinal metaplasia.- Intestinal Obstruction.- Intestinal Pseudoobstruction.- Intestinal Tuberculosis.- Intusseption.- Ischaemic Bowel Disease.- Ischaemic Colitis.- Ischaemic Gastritis.- Juvenile Polyp, Upper Gastro-Intestinal Tract.- Juvenile Polyposis Syndrome, Lower Gastro-Intestinal Tract.- Lewy Bodies, Achalasia.- Lymphocytic Colitis.- Lymphocytic Esophagitis.- Lymphocytic Gastritis.- Lymphoepithelial-Like Carcinoma.- Lymphoma, Gastrointestinal.- Lynch Syndrome.- Malabsorption.- Malignant Atrophic Papulosis (Degos`Disease).- Malignant.- Melanoma, Anus.- Mallory Weiss Lacerations, Esophageal.- Meckel`s Diverticulum.- Menetrier`s Disease (Hypertrophic Gastropathy).- Microscopic Colitis.- Microvillus Inclusion Disease.- Mucinous Carcinoma, Upper Gastro-Intestinal Tract.- Mucinous Cystadenocarcinoma, Appendix.- Mucinous Cystadenoma, Appendix.- Mucins.- Mucocele, Appendix.- Mucoepidermoid Carcinoma, esophageal.- Mucosal Prolapsus Syndrome.- Necrotizing Enterocolitis.- Neuroendocrine neoplasms of the anus.- Neuroendocrine Tumor, Colon and Rectum.- Neuroendocrine Tumor, Esophagus.- Neuroendocrine Tumor, Gastric.- Neuroendocrine Tumor, Small Intestine.- Neuropenic Colitis.- Nonsteroidal Antiinflammatory Drug Injury.- Nonsteroidal anti-inflammatory drug (NSAIDs).- Pagetas disease of the anus.- Pancreatic Heterotopia.- Parasitic Colitis.- Pemphigoid, Bullous, Esophageal.- Pemphigus Vulgaris, Esophageal.- Peptic Duodenal Disease.- Peptic Ulcer.- Peutz-Jeghers Syndrome.- Plummer-Vinson Syndrome.- Polyp, Gastrointestinal.- Polyposis Syndromes.- Pseudodiverticulum (Pseudodiverticula), Esophageal.- Pseudoepitheliomatous Hyperplasia, Esophageal.- Pseudogoblet Cells.- Pyloric Gland Adenoma.- Pyloric Stenosis.- Radiation Colitis.- Radiation inducedEsophagitis.- Radiation Therapy Injury.- Rectum.- Salmonellosis.- Sarcoidosis, Gastro-Intestinal.- Scleroderma, Esophageal.- Serrated Polyposis Syndrome.- Shigellosis.- Short gut syndrome.- Signet Ring Cell Carcinoma.- Small Intestine.- Solitary Rectal Ulcer Syndrome.- Squamous Cell Carcinoma, Anus.- Squamous Cell Carcinoma, Upper Gastro-Intestinal Tract.- Squamous Papilloma, Upper Gastro-Intestinal Tract.- Tropical Sprue.- Tubular Adenocarcinoma.- Tufting Enteropathy.- Typhoid Fever.- Ulcerative Colitis.- Uremic Gastropathy.- Varices.- Vasculitis, Upper Gastro-Intestinal Tract.- Verrucous carcinoma/Giant condyloma of Buschke and Lowenstein.- Viral Colitis.- Viral Gastroenteritis.- Volvulus.- Xanthoma, Upper Gastro-Intestinal Tract.- Zenker`s Diverticulum.- Z-Line.- Zollinger-Ellison-Syndrome.

Professor Fatima Carneiro is a pathologist and researcher in the field of gastrointestinal and liver pathology. She received her medical degree in 1978 at the Medical Faculty of Porto, Portugal, where she is currently serving as a full professor of pathology. Since 1993, she has been a Senior Researcher at the Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup/i3S). Her research is directed towards the understanding of the etiopathogenesis of gastric cancer and the molecular basis of gastric carcinoma development. Professor Carneiro is a Past President of the European Society of Pathology, Coordinator of the Portugese Network of Tumour Banks, council member of the International Gastric Cancer Association and a Fellow of the European Academy of Cancer Sciences. She has co-authored ca. 300 peer-reviewed publications ("h factor". 54- Scopus).Paula Chaves (born in 1953) graduated in medicine in 1978. She obtained her Board Certification as Pathologist in 1988 and as Consultant Pathologist in 1993. Presently, she is Senior Pathologist at the Instituto Portugues de Oncologica de Lisboa de Francisco Gentil (IPOLFG EPE). She did her PhD in 2001 at the Faculdade de Ciencias Medicas, Universidade Nova de Lisboa. Currently, she is Full Professor of Pathology at the Faculdade de Ciencias da Saude, niversidade da Beira Interior, since 2007. Before, she was Auxiliar Professor of Pathology at the Faculdade de Ciencias Medicas, Universidade Nova de Lisboa, since 1993. The mainstream of her professional career lies in the area of Gastrointestinal Pathology. She has published over 80 peer-reviewed papers and has contributed to almost 8 books in this field. Her research interest is in Barrett`s Esophagus, the premalignant condition for esophageal adenocarcima. Actually, her research work contributed for the understanding of differentiation of the distinct cellular phenotypes present in Barrett`s epithelium and theirrelationship to cancer. Professor Paula Chaves is presently the Director of the Research Center of the Instituto Portugues de Oncologica de Lisboa de Francisco Gentil (IPOLFG EPE).Arzu Ensari finished her training in Pathology in Ankara in 1991, before moving to the UK to pursue a PhD on "Cellular and Molecular Pathology of Gluten Sensitivity" under the supervision of Dr. Michael N. Marsh from 1991 to 1994. She worked with Prof. Yo Kato (Japan) on GI cancer and precursor lesions for three months in 1995. Since then Dr. Ensari has been engaged in gastrointestinal pathology at the Department of Pathology, Ankara University Medical School. In 2008 she worked in Toronto, Canada as a visiting professor with Prof. Robert Riddell, mainly on IBD. Dr. Ensari is a former chair of the GI Pathology working group of the ESP, and is a faculty member of the EScoP GI Pathology working team. She is currently working as a full-time Professor at the Department of Pathology, Ankara University Medical School. Dr. Ensari has published many articels and book chapters on GI pathology. Her major research interests include malabsorption, IBD, polyps and colorectal cancer.

• Abetalipoproteinemia.- Achalasia, esophagus.- Acute Gastritis.- Adenoacanthoma.- Adenocarcinoma, Upper Gastro-Intestinal Tract.- Adenoid Cystic Carcinoma, Esophageal.- Adenoma, Colorectal.- Adenoma, Upper Gastro-Intestinal Tract.- Adenosquamous carcinoma, Upper GI tract.- Adhesions.- Adipose Tissue Tumors, Stomach.- Amyloidosis, Gastro-Intestinal.- Anal adenocarcinoma.- Angiodysplasia.- Antibiotic Associated Colitis.- Antrum.- Anus.- Appendiceal Tumors.- Appendicitis.- Appendix.- Autoimmune Gastritis.- Bacterial Enterocolitis.- Bacterial Overgrowth Syndrome.- Barium Sulphate, Oesophageal Inclusions.- Barrett`s Esophagus.- Basal cell carcinoma of the anal margin.- Basaloid-Squamous Carcinoma, Upper GI Tract.- Cameron`s Ulcer.- Campylobacter Enterocolitis.- Carcinoma, Colorectal.- Carcinoma, Periampullary.- Carcinoma, Small Intestine.- Cardia.- Chagas Disease, Gastro-Intestinal Aspects.- CHARGE syndrome, Esophagus.- Cholera.- Choriocarcinoma, Gastro-Intestinal.- Chronic Gastritis.- C-Kit(CD117), Gastrointestinal Stromal Tumors (GISTs).- Coeliac Disease.- Collagen Vascular Disorders, Esophagus.- Collagenous Colitis.- Collagenous Gastritis.- Colon.- Condyloma, Anal.- Cowden`s Syndrome.- Crohn`s Disease.- Cronkhite-Canada Syndrome.- Cushings and Curlings Ulcer.- Diaphramatic Hernia.- Dieulafoy`s Lesion.- Disaccharidase Deficiency.- Diversion Colitis.- Diverticular Colitis.- Diverticular Disease, Colon.- Diverticulum Epiphrenic.- Drug Induced Esophagitis.- Drug Induced Gastritis.- Drug-Induced Intestinal Injury.- Duplication, Esophagus.- Duplication, Intestinal.- Dysentery, Bacillary.- E-cadherin, Gastric Carcinoma.- Enteropathy, AIDS.- Enteropathy, Neonatal (congenital).- Eosinophilic Colitis.- Eosinophilic Esophagitis.- Eosinophilic Gastritis.- Epstein-Barr Virus (EBV), Esophagitis.- Esophageal Atresia.- Esophagitis, Chemotherapy Induced.- Esophagitis, In Crohn`s Disease.- Fundic Gland Polyp.- Gangliocytic Paraganglioma, Duodenal.- Ganglioneuroma, Gastrointestinal.- Gastric epithelial dysplasia.- Gastric Heterotopia.- Gastric Stump.- Gastritis Cystica Polyposa/Profunda.- Gastroesophageal Junction.- Gastroesophageal Reflux Disease (GERD).- Gastrointestinal Autonomic Nerve Tumor.- Gastrointestinal Stromal Tumor.- Gastroparesis.- Gastropathy, Portal Hypertension.- GAVE (Gastric Antral Vascular Ectasia).- Giardiasis.- Glomus Tumor, Gastro-Intestinal.- Glycogenic Ancanthosis.- Goblet cells.- Graft-Versus-Host Disease.- Granular Cell Tumor, Gastro-Intestinal.- Granulomatous Gastritis.- Hamartomatous Polyps.- Helicobacter Heilmannii Infection.- Helicobacter Pylori Infection.- Hemorrhoid Hernias.- Hiatus Hernia, Acquired, Para-Esophageal (Rolling).- Hirschsprung`s Disease.- Hyperplastic Polyps.- Immunoproliferative Small Intestinal Disease.- Infarction,Intestinal.- Infectious Colitis.- Infectious Esophagitis.- Inflammatory Bowel Disease.- Inflammatory Cloacogenic Polyp.- Inflammatory Fibroid Polyp, Lower Gastro-Intestinal Tract.- Inflammatory Fibroid Polyp, Upper Gastro-Intestinal Tract.- Inflammatory Myofibroblastic Tumor, Upper Gastro-Intestinal Tract.- Inperforate Anus.- Intestinal Atresia.- Intestinal Immune System.- Intestinal Lymphangiectasia.- Intestinal Malrotation.- Intestinal metaplasia.- Intestinal Obstruction.- Intestinal Pseudoobstruction.- Intestinal Tuberculosis.- Intusseption.- Ischaemic Bowel Disease.- Ischaemic Colitis.- Ischaemic Gastritis.- Juvenile Polyp, Upper Gastro-Intestinal Tract.- Juvenile Polyposis Syndrome, Lower Gastro-Intestinal Tract.- Lewy Bodies, Achalasia.- Lymphocytic Colitis.- Lymphocytic Esophagitis.- Lymphocytic Gastritis.- Lymphoepithelial-Like Carcinoma.- Lymphoma, Gastrointestinal.- Lynch Syndrome.- Malabsorption.- Malignant Atrophic Papulosis (Degos`Disease).- Malignant.- Melanoma, Anus.- Mallory Weiss Lacerations, Esophageal.- Meckel`s Diverticulum.- Menetrier`s Disease (Hypertrophic Gastropathy).- Microscopic Colitis.- Microvillus Inclusion Disease.- Mucinous Carcinoma, Upper Gastro-Intestinal Tract.- Mucinous Cystadenocarcinoma, Appendix.- Mucinous Cystadenoma, Appendix.- Mucins.- Mucocele, Appendix.- Mucoepidermoid Carcinoma, esophageal.- Mucosal Prolapsus Syndrome.- Necrotizing Enterocolitis.- Neuroendocrine neoplasms of the anus.- Neuroendocrine Tumor, Colon and Rectum.- Neuroendocrine Tumor, Esophagus.- Neuroendocrine Tumor, Gastric.- Neuroendocrine Tumor, Small Intestine.- Neuropenic Colitis.- Nonsteroidal Antiinflammatory Drug Injury.- Nonsteroidal anti-inflammatory drug (NSAIDs).- Pagetas disease of the anus.- Pancreatic Heterotopia.- Parasitic Colitis.- Pemphigoid, Bullous, Esophageal.- Pemphigus Vulgaris, Esophageal.- Peptic Duodenal Disease.- Peptic Ulcer.- Peutz-Jeghers Syndrome.- Plummer-Vinson Syndrome.- Polyp, Gastrointestinal.- Polyposis Syndromes.- Pseudodiverticulum (Pseudodiverticula), Esophageal.- Pseudoepitheliomatous Hyperplasia, Esophageal.- Pseudogoblet Cells.- Pyloric Gland Adenoma.- Pyloric Stenosis.- Radiation Colitis.- Radiation inducedEsophagitis.- Radiation Therapy Injury.- Rectum.- Salmonellosis.- Sarcoidosis, Gastro-Intestinal.- Scleroderma, Esophageal.- Serrated Polyposis Syndrome.- Shigellosis.- Short gut syndrome.- Signet Ring Cell Carcinoma.- Small Intestine.- Solitary Rectal Ulcer Syndrome.- Squamous Cell Carcinoma, Anus.- Squamous Cell Carcinoma, Upper Gastro-Intestinal Tract.- Squamous Papilloma, Upper Gastro-Intestinal Tract.- Tropical Sprue.- Tubular Adenocarcinoma.- Tufting Enteropathy.- Typhoid Fever.- Ulcerative Colitis.- Uremic Gastropathy.- Varices.- Vasculitis, Upper Gastro-Intestinal Tract.- Verrucous carcinoma/Giant condyloma of Buschke and Lowenstein.- Viral Colitis.- Viral Gastroenteritis.- Volvulus.- Xanthoma, Upper Gastro-Intestinal Tract.- Zenker`s Diverticulum.- Z-Line.- Zollinger-Ellison-Syndrome.