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. 2013 Aug 15;6(9):1839–1846.

Figure 1.

Figure 1

Example of the typical features of a PDGFRA-mutant GIST. A: Large epithelioid cells with peripheral cytoplasmic clearance and distinct cell borders. B: Higher magnification showed typical binucleated cells. C: Golgi-type immunoreactivity for PDGFRA was seen in almost all tumor cells. D: Higher magnification, binucleated cells usually display the strongest reactivity for PDGFRA.