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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: Vet Pathol. 2014 Oct 3;52(5):967–976. doi: 10.1177/0300985814552108

Figures 7. Early degenerative changes within the fourth intersternebral joint, caudal segment of the sternum; 16-week-old mouse; HE.

Figures 7

Figure 7a. Early degenerative lesion within the fourh intersternebral joint is evident by a fissure along the joint line (arrow heads). Figure 7b. Higher magnification of inset in Figure 7a; degenerative changes within the joint are characterized by cleft-like fractures and fissures (arrows), multifocal loss of matrix and chondrocytes resulting in cysts containing fibrous material (small arrow heads), and clusters of proliferating chondrocytes (large arrow head).