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  Indian J Med Microbiol
 

Figure 1: An example of an extramural type of venous invasion is presented. A focus of a tumoral glandular structure is shown (a, H and E, magnification is ×100). CD31 is negative (b, magnification is × 100) and SMM is positive and the staining score is “+3” (c, magnification is × 100)

Figure 1: An example of an extramural type of venous invasion is presented. A focus of a tumoral glandular structure is shown (a, H and E, magnification is ×100). CD31 is negative (b, magnification is × 100) and SMM is positive and the staining score is “+3” (c, magnification is × 100)