Tapeworm. Light micrograph of a dog tapeworm, Echinococcus granulosus, which also infects humans to cause hydatid cysts. In canines, the tapeworm develops into the adult form seen here, attaching itself to the intestinal wall with the head-like scolex (at lower left). The tapeworm produces eggs which pass out with the feces. If these are ingested by humans or herbivores, the eggs hatch and penetrate the intestinal walls. They migrate to the liver, lungs, brain and bones. Here they form slow-growing, tumour-like hydatid cysts. Symptoms appear 5-20 years after infection and include pains and damage to the surrounding tissue by the cyst. Magnification: x40 at 35mm size.
This Rights Managed image is protected by copyright. You may not copy, publish, or use this image except for sample layout ("comp") use only. You must contact Custom Medical Stock Photo and purchase the proper use rights in order to use the image for ANY other purpose.
To download image for comp use:
1. Right click on the image. (Control-Click on Macintosh)
2. Select the Save Picture As... option from the pull-down menu that appears.
3. Choose the destination file where you want to save the image.
4. Click Save and the image will begin to download to the chosen location.
Note: If prompted to save as format Source or Text, select Source.