Arteries and Veins
The
examination of arteries and veins is straight-forward, particularly if one
remembers the three layers of each: the intima, media, and adventitia. Measure
the length and external and internal diameters of the vessel. Examine the lumen
for thrombi, examine the intima for evidence of inti-mal proliferations such as
atherosclerosis, and document the percentage of luminal narrowing caused by any
lesions. Examine the media for evidence of aneurysm formation or fibromuscu-lar
hyperplasia. Take sections that are both longi-tudinal and perpendicular to the
long axis of the vessel. The longitudinal sections will be particu-larly
helpful in demonstrating alterations involv-ing the media, and the
perpendicular sections can demonstrate the effect of any lesion on the luminal
diameter.
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