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Representative photomicrographs showing strong immunohistochemical staining for S100 and SOX-10 in tumour cells taken from a computed tomography-guided biopsy from a 61-year-old female who presented with a 2-day history of acute epigastric pain and multiple episodes of vomiting. Magnification, ×100. The colour version of this figure is available at: http://imr.sagepub.com.
