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Original Article Proliferation markers RacGAP1 and Ki-67 in gastrointestinal stromal tumors by immunohistochemistry with respect to clinicopathological features and different risk stratification systems

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Academic year: 2020

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Figure

Figure 1. Photomicrographs of RacGAP1 expression in representative GIST cases. A: Score 1 RacGAP1 positivity in the tumor cells of a case with low risk category; B: Score 2 RacGAP1 positivity in the tumor cells of a case with low risk category; C: Score 3 RacGAP1 positivity in the tumor cells of a case with high risk category [Streptavidin-biotin-peroxidase method, original magnification 400×, each].
Table 1. Clinicopathologic features of GISTs in the overall study population and with respect to RacGAP1 expression and Ki-67 proliferation index
Table 2. Risk stratification with respect to RacGAP1 expression and Ki-67 proliferation index
Table 3. Clinicopathologic features of GISTs and with respect to risk stratification according to AFIP and modified NIH criteria
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