“…4 In Japan, 25 cases have so far been reported, including that in the present patients since the fi rst case reported by Tomita in 1977, [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] while 51 cases of heterotopic gastric mucosa in the gallbladder had been reported in other countries up to 2007. 1,3,[21][22][23][24][25][26][27][28][29] In the 72 detailed case reports (including our own), the sex distribution is roughly equal (40 males, 32 females). The tumor sites were the neck in 39 cases (57.4%), the body in 13 cases (19.1%), the fundus in 13 cases (19.1%), the cystic duct in 3 cases (4.4%), and 4 cases were unknown.…”