Fig. 2

Histology of healing tendon at week 17 post-rupture. A residing island of Alcian blue-positive proteoglycan matrix was seen in the MP and I regions of late healing tendon (a). An enlargement of the dashed white box in (a) shows an Alcian blue-positive area in the MP region (b), where further magnification shows rounded chondrocyte-like cells (white arrows) in this area (c)