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. 2016 Aug 30;2(1):84. doi: 10.1186/s40792-016-0214-x

Fig. 3.

Fig. 3

a Excised insulinoma, measuring 18.0 × 13.0 × 12.0 cm. b Hematoxylin-eosin staining of the insulinoma (×400). c Tumor cells are positive in the immunohistochemical staining for chromograin A (×400). d Ki67 is 4.3 % (×400). e Tumor cells are focally positive for insulin (×400)