2. Type of endothelial tissue Endothelioma.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
We further know that it is preceded by dilatation of the capillaries and small veins, and that it is effected principally through the process known as diapedesis, or the passage of both red and white corpuscles with plasma through the unruptured capillary membrane, and even the thin one of small veins, which is nearly of the same structure, being composed of endothelial cells united by cement.
"On Snake-Poison: its Action and its Antidote"
A. Mueller
Microscopically, it may contain some large endothelial cells and a few lymphocytes, or may be entirely devoid of cells.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition."
Alexander Miles Alexis Thomson