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Right Colon Diverticulosis In An Ethnically Diverse American Community

Right Colon Diverticulosis In An Ethnically Diverse American Community

Michael Lalla, M.D.,  Jackson Kuan, M.D.

Objective:  Right colon diverticulosis (RCD), although rare in the Caucasian population, is prevalent in the Asian population. Asians are thought to be genetically predisposed to RCD and increasing occurrences of RCD in this population have been linked to increased meat intake and development of a westernized diet. The New York City area is known as one of the most diverse ethnic populations in the United States and this paper reviews the incidence of right colon diverticulosis in a hospital serving this culturally diverse community.

Methods:  A retrospective review of colonoscopy reports from a 15 month interval at a hospital in the New York City area was undertaken identifying race, age, sex and presence of diverticuli in the cecum, right colon and left colon.

Results: 1768 colonoscopies were performed with 147 patients noted having right colonic diverticuli. 63% of these were of Asian origin. 23 had only cecal diverticuli with 22 of Asian origin and one of African American. Hispanic patients with RCD were noted to have a pandiverticulosis (18/21).  The majority of Caucasians and African Americans had a pandiverticulosis with only 5 having RCD only.

Conclusions:  RCD and isolated cecal diverticulosis remains more prevalent in the Asian population in the United States suggesting a genetic predisposition. Solitary RCD remains uncommon in other ethnic populations. Hispanic patients have a predilection to pandiverticulosis and rarely had RCD.

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