Neoplastic change in a duplicated colon

Adenocarcinoma arising in colonic duplication cysts with calcification: CT findings of two cases

“…Histologically, the inner surface is lined with a mucosa similar to some portion of the alimentary tract, and the wall is composed of several layers of smooth muscle [1][2][3][4]. In our survey, we found 16 cases in the English literature of malignant tumors arising from alimentary tract duplications [5][6][7][8][9][10][11][12][13][14][15][16][17][18]. The 18 cases, including the present two, consisted of six men and 12 women, ranging in age from 33 to 65 years.…”

Adenocarcinoma in tubular duplication of the sigmoid colon

“…A duplication of the cecum reported by Tamoney and Testa [3] contained an infiltrating adenocarcinoma developed in a villous adenoma. A squamous cell carcinoma was found in a duplication of the ascending and transverse colon in the Larizadeh and Powell case [4]. The duplication originated near the ileocecal valve and extended to the mid,transverse colon where the neoplastic process was located.…”

“…Except for the case reported in 1882 [2], all other cases had barium enema and showed an accessory lumen filled with barium. In the two barium demonstrated cases [3,4] the accessory colonic segment originated about the cecum and extended in one case to the transverse colon.…”

“…In a series of 67 duplications in adult patients, three (2%) had developed carcinoma, one of each in a tubular duplication of the esophagus, stomach, and ileum [I]. Carcinoma in a tubular duplication of the colon has been reported, to our knowledge, in only three instances [2][3][4].…”

Duplication of the colon — Report of two cases and review of the literature

“…Perforation of a colonic duplication is also rare and can present with peritonitis [22]. Neoplasia arising in an duplicated colon has been reported in only three cases [23][24][25].…”