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Duodenal ulcer Bleeding ulcer Gastric ulcer Inflammation Helicobacter pylori causes inflammation of the gastric mucosa (gastritis). This is often asymptomatic. Infection Helicobacter pylori infects the lower part of the stomach, antrum. Ulcer Gastric inflammation may lead to duodenal or gastric ulcer. Severe complications include bleeding ulcer and perforated ulcer. Helicobacter pylori Inflammatory cells Increased acid secretion Inflammation Inflammation © The Nobel Committee for Physiology or Medicine Gastric mucosa Protective mucus Pylorus Duodenum Helicobacter pylori — the bacterium causing peptic ulcer disease Antrum Corpus Helicobacter pylori

Helicobacter pylori - nobelprize.org · ulcer Bleeding ulcer Gastric ulcer Inflammation Helicobacter pylori causes inflammation of the gastric mucosa (gastritis). This is often asymptomatic

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Page 1: Helicobacter pylori - nobelprize.org · ulcer Bleeding ulcer Gastric ulcer Inflammation Helicobacter pylori causes inflammation of the gastric mucosa (gastritis). This is often asymptomatic

Duodenal ulcer

Bleeding ulcer

Gastric ulcer

InflammationHelicobacter pylori causes inflammation of the gastric mucosa (gastritis). This isoften asymptomatic.

InfectionHelicobacter pylori infects the lower part of the stomach, antrum.

UlcerGastric inflammation may lead to duodenal or gastric ulcer.Severe complications includebleeding ulcer and perforated ulcer.

Helicobacter pylori

Inflammatory cells

Increasedacid secretion

Inflammation Inflammation

© The Nobel Committee for Physiology or Medicine

Gastri

c m

ucos

a

Protectivemucus

Pylorus

Duodenum

Helicobacter pylori — the bacterium causing peptic ulcer disease

Antrum

Corpus

Helicobacter pylori