<prompt> Most common type of mesenteric cystChylolymphaticEnterogenousUrogenital remnantDermoid  <response>: Cysts may occur in the mesentery of either the small intestine 60 or the colon 40. Types include ChylolymphaticEnterogenousUrogenital remnant actually retroperitoneal but project into peritoneumDermoidAlthough all mesenteric cysts are rare, chylolymphatic is the most common variety, arises in a congenitally misplaced lymphatic tissue.Ref: Bailey and love 27e pg: 1063 