Introduction.

Gastric duplications are rare congenital entities that are diagnosed primarily in early life, and rarely in adult patients. The objective of this article was to present the case of an adult with this pathology, successfully treated by surgery.

Clinical case.

A 26-year-old woman with chronic epigastralgia refractory to medical management, who during upper digestive endoscopy was identified with a cystic lesion suggestive of gastro-intestinal stromal tumor, confirmed by endoscopic ultrasound.

Results.

A laparoscopic surgical resection assisted by endoscopy was performed, with good postoperative evolution. The anatomopathological study reported the presence of a gastric duplication cyst.

Conclusions.

Despite the diagnostic adjuncts currently available, this pathology represents an important diagnostic challenge that, in many cases, can only be confirmed through pathology. In asymptomatic patients, the controversy continues between observing them or taking them to surgery due to the risk of malignancy. Currently, the management of gastric duplications in adults is considered eminently surgical. Laparoscopic resections and the use of intraoperative endoscopy ensure complete resection of the lesion, preserving the greatest amount of adjacent healthy tissue and preventing gastric stenosis or deformities that affect its proper functioning.

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