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General and Systemic Histopathology, C601&C602
     
    Slide 83: Arteriovenous Malformation in the Brain
     
     
    The many malformed vascular channels are quite evident in the picture to the left.  These lesions are apt to bleed, as the presence of this specimen in our study attests to.  No this is not a surgical specimen.

    See this slide with the virtual microscope.

    Here you will see many large and malformed blood vessels that have a "hybrid" wall structure. In some areas the wall resembles a vein and in others an artery. Look for an elastic interna. One would never expect to see vessels of this size with such peculiar wall structure within the brain. This represents a congenital deformity and can cause death at any age. The vessels are subject to leakage or rupture and this subject in fact died with an intracerebral hemorrhage.


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