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  • Title: Small gastric hyperplastic polyp with acute bleeding as an unusual presentation of malignancy: A case report.
    Author: Park KS, Lee SW, Lee J, Kim MS, Park PH, Moon SJ, Kang SB, Lee DS.
    Journal: Medicine (Baltimore); 2018 Jun; 97(22):e10899. PubMed ID: 29851815.
    Abstract:
    RATIONALE: Gastric hyperplastic polyps are frequently found on upper gastrointestinal endoscopy and usually asymptomatic. PATIENTS CONCERNS: A 65-year-old man visited the emergency department due to melena. Emergency upper endoscopy revealed a semi-pedunculated polyp measuring 1.2 cm in diameter with blood oozing. We resected the polyp using snare polypectomy. Ulceration was noted on the polypectomy specimen and was thought to be a bleeding focus. DIAGNOSES: Histopathologic findings revealed hyperplastic polyp with focal well-differentiated adenocarcinoma in the ulcerated area and involvement of the lateral resection margin by carcinoma. INTERVENTION: We performed additional endoscopic resection using endoscopic submucosal dissection at the previous polypectomy site. OUTCOME: At 1 year follow up, no recurrence or other distant metastasis was detected. LESSONS: This is a rare case of upper gastrointestinal bleeding from a small gastric hyperplastic polyp, which was found to be adenocarcinoma. When bleeding small gastric polyps are encountered during endoscopy, the possibility of malignancy and wider resection should be considered.
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