Endoscopic submucosal dissection of a gastric neoplasm with osseous metaplasia

Osseous Metaplasia in a Gastric Adenoma of the Stomach

“…6–11 Thus far, 4 hyperplastic polyps and 2 adenomatous polyps were reported in the literature. 6–11 It was Ohtsuki et al who reported the first case of OM in a hyperplastic polyp of the stomach in 1987. 11 OM has also been seen in a carcinoma of the stomach.…”

“…Although described in various organs, heterotopic bone formation known as osseous metaplasia (OM) is a rare phenomenon in the gastrointestinal tract. [1][2][3][4][5][6][7][8][9][10][11] OM in the stomach is even less common than that in other parts of the gastrointestinal tract, with less than 10 cases reported in the English literature to date. [6][7][8][9][10][11] Thus far, 4 hyperplastic polyps and 2 adenomatous polyps were reported in the literature.…”

“…[1][2][3][4][5][6][7][8][9][10][11] OM in the stomach is even less common than that in other parts of the gastrointestinal tract, with less than 10 cases reported in the English literature to date. [6][7][8][9][10][11] Thus far, 4 hyperplastic polyps and 2 adenomatous polyps were reported in the literature. [6][7][8][9][10][11] Ohtsuki et al reported the first case of OM in a hyperplastic polyp of the stomach in 1987.…”

“…[6][7][8][9][10][11] Thus far, 4 hyperplastic polyps and 2 adenomatous polyps were reported in the literature. [6][7][8][9][10][11] Ohtsuki et al reported the first case of OM in a hyperplastic polyp of the stomach in 1987. 11 We present a rare case of a 65-year-old man with a history of pernicious anemia and hypothyroidism.…”