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. Author manuscript; available in PMC: 2012 Sep 1.
Published in final edited form as: Osteoarthritis Cartilage. 2011 Jun 1;19(9):1132–1141. doi: 10.1016/j.joca.2011.05.008

Fig. 4.

Fig. 4

Meniscus morphology and collagen fiber organization: (A) Normal appearance of extracellular matrix and collagen fiber organization, score 0. (B) Diffuse foci (•) of degenerated extracellular matrix (hyalin and/or mucoid), most of the collagen fibers are organized, score 1. (C) Bands or confluent foci of degenerated extracellular matrix substance (hyalin and/or mucoid), most of the collagen fibers appear unorganized, score 2. (D) Fibrocartilaginous separation (edema, hyaline and/or mucoid degeneration, cyst formation (♦), tears) with unorganized collagen fibers, score 3. Safranin O - Fast Green, 4x.

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