Vascular structures in brain tumors.

摘要: The blood vessels within brain tumors show alterations from the normal anatomy. Some of these seem to be related an increased capacity transfer materials between lumen and parenchyma are probably intimately connected with edema associated tumor. These include fenestration, widened intercellular junctions, increase in pinocytotic vesicles, infolding luminal surface. Other observed but their function is not as clear. latter number tubular bodies, appearance structures vacuoles, arrays nuclear envelope rough endoplasmic reticulum, endothelial proliferation, among others.