Subscribe - the global online resource for all aspects of gastroenterology, hepatology and endoscopy

 21 June 2018

Advanced search - the global online resource for all aspects of gastroenterology, hepatology and endoscopy Profile of Roy Pounder


Review Articles
Slide Atlas  
Video Clips
Online Books
Advanced Digestive Endoscopy
Classical Cases
Conference Diary
International GH Links
USA GH Links
National GH Links
National GI Societies
Other Useful Links

Emails on Gastroenterology and Hepatology
the National AIDS Treatment Advocacy Project
Visit the gastroenterology section of the EUMS

Slide atlas


Malignant diseases

Click a heading in the right-hand column to see the selected images in that subject area

Betel-nut chewing causes oral cancer.
The photograph is of a man from Sabah. He is chewing betel-nut - which can be seen as a quid between his gums and buccal mucosa. A quid may be sucked for several hours. This habit is associated with an increased incidence of oral cancer amongst its users. The man is holding a leaf of the large seed from the Asian palm tree (Areca catechu). It is often chewed as a mixture of lime, tobacco, and betel-nut. It is wrapped in the leaf of the betel pepper (Piper chavica betel) and sprinkled with burnt lime, catechu gum from the Malayan acacia tree (Areca catechu), and nutmeg, cardamom, or other species. The alkaloid, arecoline, is a major constituent of betel-nut, and causes euphoric effects.


Peter Devitt, Adelaide, Australia

Betel-nut chewing causes oral cancer.

Download this image

PC users: right-click on the image and choose 'Save Picture/Image As' from the popup menu.
Mac users: click and hold down over the image and choose 'Save This Image As' from the popup menu.

Submit your images

Play a part in the community by publishing your important images in the Slide Atlas. We're looking for high quality images in gastroenterology, hepatology or endoscopy.

Go to top of page Email this page Email this page to a colleague

Close folder Gastroenterology
Stomach & duodenum
Helicobacter pylori
Small intestine
Colo-rectum and anus
Inflammatory bowel disease
Functional bowel disorders
Symptoms/signs of gastrointestinal disease
Basic science
Close folder Hepatology
Biliary tract
Viral hepatitis
Liver diseases
Cirrhosis and portal hypertension
Liver transplantation
Liver & other diseases
Pediatric hepatology
Basic science
Close folder Endoscopy
Upper endoscopy
Endoscopic ultrasound
Practice issues

Blackwell Publishing is a Blackwell Publishing registered trademark
© 2018 Wiley-Blackwell and and contributors
Privacy Statement
About Us