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Immunohistochemical expression of α-SMA, Ang-2 and VEGF in low-grade salivary gland MEC. Malignant cell blocks in the representative area (patient number 8, Table 2) exhibit reactivity to Ang-2 (b) and VEGF (c). Scant occurrence of myofibroblasts in the tumor-associated stroma was detected by the positive expression of the α-SMA antibody (a) and these cells were positive for Ang-2 (b), but negative for VEGF (c). Original magnifications ×200
