“…Accumulation of protein-rich fluid, chronic inflammation, hypertrophy of adipose tissue, and fibrosis are common pathological changes in the swelling area (Bjork and Hettrick, 2019). Although several therapy strategies have been developed to reduce symptoms, there is no cure currently (Bjork and Hettrick, 2019). The surgical treatments have many shortages; in endovascular stent placement cases, displacement and deformation of the stents are widely seen (Raju et al, 2001), auto-transplantation of lymph nodes often cause damage to other parts of the body (Nguyen and Suami, 2015), and lymphovenous shunt operation is technically difficult, which could not be done without the help of microscope (Koshima et al, 2000).…”