Tenosynovial giant cell tumor Left low power view shows a lobulated tumor mass with lobules divided by thick collagen fibers (left, low-power view). High power view (right) shows a mononuclear cell population (the neoplastic cell population admixed with multinucleated giant tumor cells). Source: Soft Tissue and Bone Pathology, Pathology: A Modern Case Study Citation: Reisner HM. Pathology: A Modern Case Study; 2015 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/1569/rei_ch18_f040.png&sec=95971786&BookID=1569&ChapterSecID=95971530&imagename= Accessed: October 19, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved