Capillary Telangiectasias are small (0.3 to 1.0 cm) lesions
composed of capillary vessels with saccular or fusiform dilations.
These tiny blood vessels lack muscular and elastic components in
their walls. The vessels are separated from each
other by normal appearing brain tissue without "gliosis"
(scarring of the Brain). These lesions are rarely symptomatic
and not likely to cause bleeding. Capillary Telangiectasias are
almost always clinically silent.
Most Capillary Telangiectasias are found incidentally on
autopsy. There are very few reports of concerning significant
hemorrhage from these structures. There is some scientific
speculation suggesting that Capillary Telangiectasias are
pathophysiologically related to Cavernous Angiomas.
Capillary Telangiectasia can be identified as a tiny area of
hypointensity on T2-weighted MRI scans although these hypodensities
may represent previous subclinical hemorrhage.
This page last edited on 2/22