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Immunostaining of the RPE with TGF β1. (A) RPE fibrous metaplasia surrounding bone (haematoxylin and eosin; magnification ×20). (B) Mild to moderate stippled TGF β1 staining of RPE metaplasia (arrowheads) around the bone in (A). Bruch’s membrane is indicated by the arrow (magnification ×20).
