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Surgical Case Reports
Fig. 4 | Surgical Case Reports

Fig. 4

From: A peripheral primitive neuroectodermal tumor originating from the pancreas: a case report and review of the literature

Fig. 4

Pathologic findings. a Gross appearance of the cut surface of the tumor. b The tumor was composed of atypical small round cells with scant cytoplasm (hematoxylin and eosin staining, original magnification, ×100). The left side shows pancreatic acinar cells. c The tumor cells show strong cytoplasmic membrane positivity to CD99 (immunohistochemical staining, original magnification, ×100). d Two-color FISH assay results. The probe was localized to the breakpoints on chromosome 22q12 and provided evidence of the t(22q12) translocation by showing one red and one green signal pattern on the derivative chromosome 22

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