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Paraffin sections showing expression of D2-40 in lymph endothelial cells (red colour). (A) Lymphatics (black arrows) within the lamina propria of a normal urinary bladder; all vessels containing erythrocytes are nonreactive (blue arrows) (original magnification: ×100). (B) D2-40–positive lymph vessels in stromal tissue within smooth muscle in normal urinary bladder (original magnification: ×100). (C) D2-40–positive lymph vessels (black arrows) and blood vessels (blue arrows) in close relationship to each other within adipose tissue in a normal urinary bladder (original magnification: ×200).
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