Figure 2. Normal appearance of the polypropylene (PP) and expanded polytetrafluorethylene (e-PTFE) meshes on ultrasound. (a) Transverse ultrasound at the level of the left inguinal canal in a patient with a laparoscopic repair. The PP mesh appears as an echogenic line (thick arrows). (b) Transverse ultrasound at the level of the hypogastrium in a 69-year-old woman with laparoscopic surgery for ventral hernia and an e-PTFE mesh located intraperitoneally. The e-PTFE mesh (long arrow) appears as an echogenic line.