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  • Title: Diagnosis and treatment of a gastric hamartomatous inverted polyp: report of a case.
    Author: Aoki M, Yoshida M, Saikawa Y, Otani Y, Kubota T, Kumai K, Wakabayashi G, Omori T, Mukai M, Kitajima M.
    Journal: Surg Today; 2004; 34(6):532-6. PubMed ID: 15170552.
    Abstract:
    Gastric hamartomatous polyps are rare and difficult to diagnose. We report the case of a 43-year-old woman admitted to our hospital after an upper gastrointestinal series revealed a submucosal tumor. Upper gastrointestinal endoscopy showed a submucosal tumor (SMT), which was eroded with a depression on its surface, in the upper corpus. Endoscopic ultrasonography showed a heterogeneous tumor in the third layer. A laparoscopic wedge resection of the stomach allowed us to perform complete resection of the tumor, which measured 2.8 cm in diameter. The pathological diagnosis was a gastric hamartomatous inverted polyp. The postoperative course was uneventful. Only 27 cases of gastric hamartomatous polyps have been reported in Japan. Hamartomatous inverted polyps without a stalk are classified as the "SMT type" because the tumor is inverted into the submucosal layer, whereas polyps with a stalk are classified as the "polyp type." All of the polyps in past reports were resected endoscopically; however, laparoscopic wedge resection may be indicated for SMT-type hamartomatous inverted polyps larger than 2.0 cm in diameter.
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