tional inflation of the stomach; prone position): as the patient changes position, thickness of the stomach wall remains stable (arrows). Conclusion: Minor infiltrative cancer of the upper third of the stomach body. m Macrospecimen of a resected stomach: folds converging towards the firm part of the wall (arrow). n Fragment of the macrospecimen (strip): arrows indicate white intramural infiltration extending over a distance of 3 cm, mostly in the submucous layer. o Microspecimen of the wall fragment: signet-ring cell carcinoma. Tumor cells have the classical fingerlike shapes floating in »lakes« of mucus
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