A case report:Alimentary track hemorrhage caused by mesentery Kaposiform hemangioendothelioma and literature review / 实用肿瘤学杂志

ABSTRACT

Kaposiform hemangioendothelioma ( KHE ) is a vascular tumor characterized by intermediate malignancy.Retrospective analysis and literature review on the clinical pathologic,immunohistochemical and clini-cal data of a patient with mesentery KHE.The cardinal symptom of this patient is alimentary track hemorrhage, imageological diagnosed as a huge soft tissue mass of mesentery and invaded ileum.Clinical feature is without Ka-sabach-Merritt phenomenon,observing under the light microscope.The tumor is with cavernous vascular structure, and lymphocyte infiltration inside of stroma.The nodules are composed of disposed and lots of short spindle cell tumor;the tumor cells inside of the nodules are vertical and horizontal staggered and form tendon like or fissuring vessels.Immunohistochemistry:CD31(+),CD34(+),D2-40(+),C-Kit(-),SMA(-),Ki-67(1%).