Figure 3 - uploaded by Deyan Anakievski
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Demonstration of the vascular endothelial cells positively expressing the Immunohistochemical staining marker CD99 (CD99x100).
Source publication
Haemangioma of the urinary bladder is a rare vascular tukmor with a benign nature and a very wide age range. It accounts only 0.6% of bladder neoplasms and is therefore quite infrequently discussed in literature. It is also seen more often among men than among women. Histologically classified as cavernous, capillary or arteriovenous, this lesion re...
Context in source publication
Context 1
... endothelial cells showed no signs of atypia, no mitoses were found and the expression of the Ki-67 appeared to be negative, hyperplasia of the surrounding stroma was present, accompanied by several zones of necrosis and haemorrhages. Further histologic examination revealed that the endothelium was positive for CD34 (Figure 2) and CD99 (Figure 3) markers. While the stromal cells were diffusely expressing Vimentin (Figure 4) and partially expressing SMA ( Figure 5). ...
