=====Endocan===== Is closely related to tumor [[angiogenesis]], and may predict tumor invasion into neighboring cavernous sinuses in [[pituitary neuroendocrine tumor]]s ((Matano F, Yoshida D, Ishii Y, Tahara S, Teramoto A, Morita A. Endocan, a new invasion and angiogenesis marker of pituitary neuroendocrine tumors. J Neurooncol. 2014 Feb 7. [Epub ahead of print] PubMed PMID: 24504498.)).