A bifurcated stent graft (10) includes a stent graft body that defines preferably exactly one main body opening (12) and at least two exit openings (13,14). The stent graft body includes at least one stent (15) attached to a graft fabric material (16), and includes a dividing wall (20) that divides a combined flow path(17), into a first flow path (18) and a second flow path (19) that each terminate at one of the respective exit openings (13, 14). The dividing wall (20) includes a thickness profile that terminates at a leading edge radius that extends across a width of the combined flow path.
