Cartilage Degeneration at Symptomatic Persistent Olecranon Physis in Adolescent Baseball Players

<div>(a) Growth plate remnant with a sclerotic margin. Moderate reduction in hematoxylin-eosin staining and disorientation of chondron columns in the olecranon physis. (b) Magnified view showing a decreased number of chondrocytes in the lesion. (c) Chondrocyte cluster formation in the lesion. (d) Proliferating cell nuclear antigen-positive cells in a chondrocyte cluster. Bars: 200 <i>μ</i>m (a), 100 <i>μ</i>m (b), 50 <i>μ</i>m (c), and 20 <i>μ</i>m (d).</div>

Advances in Orthopedics

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Figure 2

Figure 2: Cartilage Degeneration at Symptomatic Persistent Olecranon Physis in Adolescent Baseball Players 