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Histology of the meniscus with increasing age. Hematoxylin-eosin staining of adult and fetal meniscus samples showing region-specific (outer zone [A, D]; middle zone [B, E]; inner zone [C, F]) and age-dependent variations in matrix content, cellularity, and blood vessel distribution. With increasing age, the menisci become less cellular (ie, fewer nuclei) and less vascular (ie, fewer vessels observed), particularly in the inner region (original magnification ×10).
