Figure 3.

a-d: LHB tendon sections after staining with VEGF antibody. Fortyfold magnification objective lens magnification (a-c). In the control group (a) no VEGF expression and little vessel density can be observed. Example for group II "partial thickness rotator cuff tears" (b) with more VEGF expression and minor vessel density. In the group "full thickness rotator cuff tears" VEGF expression is higher and many vessels are visible (c). Example for the group IV "Cuff arthropathy" (Tenfold objective lens magnification, Masson-Goldner staining) with a high number of vessels visible (d).