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  • Title: Endoscopic management of multiple large antral hyperplastic polyps causing gastric outlet obstruction.
    Author: Pontone S, Pironi D, Eberspacher C, Pontone P, Filippini A.
    Journal: Ann Ital Chir; 2011; 82(4):297-300. PubMed ID: 21834480.
    Abstract:
    Gastric hyperplastic polyps are often asymptomatic and are found incidentally at upper endoscopy performed for unrelated reasons. Although they are considered a benign lesion, all symptomatic polyps should be removed for a more reliable histological diagnosis, resolution of symptoms and to prevent potential malignant transformation. In fact, there are no significant difference between pure gastric hyperplastic polyps and gastric hyperplastic polyps with neoplastic transformation in the number, location, or gross appearance of polyps. If symptomatic, patients usually complain of dyspepsia, heartburn, abdominal pain or upper gastrointestinal bleeding leading to anaemia. Complete or incomplete gastric outlet obstruction with intermittent symptoms, may rarely be caused by gastric hyperplastic polyps. We described the management of a rare case of intermittent gastric outlet obstruction caused by a large hyperplastic antral polyp prolapsing through the pylorus. Using hydroxypropylmethylcellulose, a new lifting agent, firstly from pyloric side, we obtained a reliable long-lasting submucosal cushion under the lesion which allowed a stable repositioning of the polyp in the gastric lumen without making additional infiltration during the endoscopic mucosal resection. Innovative lifting agents could significantly reduce the procedure time, but additional studies should be performed on this area to confirm preliminary results. Endoscopic mucosal resection not only provides tissue to determine the exact histopathologic type of the polyp, but also achieves symptomatic treatment.
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