Annals of Hepato-Biliary-Pancreatic Surgery

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Fig. 5.

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Fig. 5. Microscopic findings of the polypoid mass showing a zellballen pattern (pink boundary; H&E, ×200) (A). In immunohistochemical staining, tumor cells were positive for CD56 (B; ×200), synaptophysin (C; ×200), and chromogranin (D; ×200).
Ann Hepatobiliary Pancreat Surg 2021;25:566-70
© 2021 Ann Hepatobiliary Pancreat Surg