Sextuple Tumors in Head and Neck Area: Evidence of Field Cancerization

<div>(A) Strong and diffuse immunoreactivity for Ki-67 in the region adjacent to the tumor (less magnification); (B) transition area. Arrows indicate nucleation markers for Ki-67 in the region adjacent to the tumor; asterisk marks tumor region (highest magnification).</div>

Case Reports in Pathology

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Figure 4

Figure 4: Sextuple Tumors in Head and Neck Area: Evidence of Field Cancerization 