摘要Vascularized lymph node transfers(VLNT)are useful options for the surgical treatment of lymphedema.Conventional VLNT does not include the reconstruction of physiological lymphatic outflow,which may pose a risk of postoperative lymphatic vessel obstruction and lymph node sclerosis.We report a case of lymph flow bypass reconstruction using a superficial circumflex Iliac artery perforator(SCIP)flap,including VLNT with efferent lymphatico-lymphatic anastomosis.A 63-year-old female with severe right upper extremity lymphedema after mastectomy was reconstructed using a SCIP free flap,which included a vascularized lymph node elevated from the left groin area and transferred to the right axilla area.The SCIP vessels were anastomosed to the medial intercostal artery perforator vessels and the efferent lymphatic vessel from the vascularized lymph node was anastomosed to the internal mammary lymphatic vessels using supermicrosurgical technique.Indocyanine green lymphography showed the reconstructed lymphatic flow from the right hand to the right internal mammary lymphatics through the transferred flap.Postoperatively,lymphedema improved and there was no lymphedema at the donor site with a 2-year follow-up.Lymphatic flow bypass reconstruction using VLNT with efferent lymphatico-lymphatic anastomosis may provide a useful option for the treatment of severe lymphedema.