vascular tuft

vascular tuft

One of the vascular processes on the chorion in the fetus at an early stage of development. Synonym: chorionic villi
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Excision biopsy of the lesion showed that the characteristic 'cannonball appearance' was scattered vascular tufts composed of capillaries and endothelial cells in the dermis [Figure 1]d.
These vascular tufts are comprised of endothelial cells and associated pericytes.
Confirmation of diagnosis of angioblastoma is by histopathological examination which shows vascular tufts of densely packed capillaries surrounded by crescent shaped blood vessel which is known as 'cannonball'.4 Magnetic resonance imaging (MRI) is helpful in the evaluation of depth of invasion of tufted angioma.2 On suspecting KMS complete hemogram and thorough coagulation profile (bleeding time, clotting time, prothrombin time, PTT, APTT), fibrin degradation product and D-dimers should be evaluated.