Slide 129

General and Systemic Histopathology, C601&C602

Slide 129: Rectal hemorrhoids

	This is obviously a strip from the wall of the rectum. If you look at it on a white background, you should be able to easily spot the dilated hemorrhoidal veins. *See this slide with the virtual microscope.*
	Note the dilated and thin walled vessels in the sub-mucosa. Some are thrombosed, and some may have an inflammatory infiltrate in the wall or the surrounding tissue. What causes this condition? Where else would you expect to find them?

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Mark Braun, MD braunm@indiana.edu