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Surgical Case Reports
Fig. 3 | Surgical Case Reports

Fig. 3

From: Long-term survival of a patient with small cell carcinoma of the stomach with metachronous lung metastases treated by multimodal therapy: a case report

Fig. 3

Hematoxylin-eosin staining and immunohistochemistry. a The tumor is invading the muscularis propria in some parts (HE staining, ×40). b Monotonous tumor cells have little cytoplasm and round chromatin-rich nuclei; many mitotic figures are also seen (183 per 10 high-power fields) (HE staining, ×400). c In one part of the surrounding elevation, a well-differentiated tubular adenocarcinoma is seen (HE staining, ×40). The tumor shows positive staining with d chromogranin A (×400) and e synaptophysin (×400). f Many Ki67-positive cells are seen, and the Ki67 index is 66.7 % (×400)

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