The present invention relates to a modular stent graft which is designed for introduction into a blood vessel in a patient and which has a stent connected by means of a graft material the stent graft has a first stent graft module having a body, a proximal end and a distal end, as well as at least three tubular arms extending longitudinally in the distal direction from the distal end of the first stent graft module, said arms being integrally connected to the body of the first stent graft module in addition, a second stent graft module is provided which has a second body, a proximal end and a distal end, as well as at least three tubular arms extending longitudinally in the proximal direction from the proximal end of the second stent graft module, said arms being integrally formed with the body of the second stent graft module in the assembled state a modular stent graft is formed, the modules of which are situated in the same blood vessel.
