Histological features of gastrointestinal tract with clinical correlation

Guided byDr. Laila Anjuman BanuProfessor,Genetics and molecular biology,Chairman, Dept of Anatomy, BSMMU.

Presented byDr. Zobayer Mahmud KhanResident, Dept of Anatomy, BSMMU.

Stomach

Wall of the stomach with rugae

Gastric pit and gastric gland

pit

Isthmus

Neck

Fundus

Different cells of the stomach

Different cells of the stomach

Different cells of the stomach

Peptic Ulcer

Peptic Ulcer (cont…)

Chronic Atrophic Gastritis

Autoimmune Gastritis

Megaloblastic Anaemia

Gastric Carcinoma

Carcinoid

SmallIntestine

Absorptive surface of the Small Intestine

Absorptive surface of the Small Intestine

Intestinal crypts and glands

Peyer’s patches

Peyer’s patches

Enterocytes

Paneth cell

Coeliac disease

Crohn’s disease

Microgranulomatous Nodule in Typhoid

Intestinal Tuberculosis

LargeIntestine

Wall of the Large Intestine

Wall of the Large Intestine

Goblet Cell

Colonocytes

Appendix

Anorectal Junction

SQZ

internalanalsphincter

externalanalsphincter

anal valve

CRZ

ATZ

Anal gland

Ulcerative Colitis

Adenocarcinoma of colon

Adenomatous Polyp

Appendicitis

Appendicitis

Objectives

• Describe the normal important histological features of the gastrointestinal tract.

• Correlate the common clinical conditions associated with the histological features.

gastrointestinal (ga˘stro¯-ı˘n-te˘stı˘n-a˘ l) [ L. intestinalis, intestine] Pertainingto the entire digestive tract, from themouth to the anus.

gastrointestinal (ga˘stro¯-ı˘n-te˘stı˘n-a˘ l) [ L. intestinalis, intestine] Pertainingto the stomach and intestine.

18th EDITION

21ST EDITION

Parasympathetic ganglia