Keywords: مخاطی خارج رحمی معده; EGM; ectopic gastric mucosa; CK; cytokeratin; PET; positron emission tomography; FDG; flurodeoxyglucose; CT; computed tomography; EC; Fepirubicin, cisplatin, fluorouracil 5FU; MUC; mucins; Adenocarcinoma; Ectopic gastric mucosa; Gastric inlet patch; Oeosp