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Fig. 4 | Surgical Case Reports

Fig. 4

From: Surgical resection of mixed neuroendocrine-non-neuroendocrine neoplasm in the biliary system: a report of two cases

Fig. 4

Macroscopic and microscopic findings of MINEN in distal bile duct. a Macroscopic findings of the mixed-type tumor (20 × 12 mm, nodular-infiltrating type). b, c Microscopic findings revealed coexisting tubular formation and solid-nest growth. df Tumor cells were partially positive for synaptophysin (d), CD56 (e), and chromogranin A (f). g Tumor cells had a Ki-67 index > 20%. MINEN, mixed neuroendocrine-non-neuroendocrine neoplasm

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