INTRODUCTION: Lymphedema of the arm is a common postoperative complication as a result of breast cancer surgery. One of the surgical treatments comprises modification of a deep inferior epigastric perforator (DIEP) flap breast reconstruction to facilitate additional lymph node transplantation from the inguinal area. Using computed tomography angiography (CTA), the distribution of these lymph nodes can be assessed. A virtual planning based on this CTA created for the DIEP flap is presented, with the inguinal lymph nodes included, followed by preoperatively projecting this information on the patients’ abdomen. MATERIALS AND METHODS: A total of ten patients underwent the standard imaging protocol: A preoperative CTA to assess the vascular anatomy of the lower abdomen. A three-dimensional (3D) model of the blood vessels was produced, and the inguinal lymph nodes in this reconstruction were included. Preoperative projection of the 3D model onto the patients’ abdomen and inguinal area was performed, followed by tracing of this image. Intra-operatively found lymph nodes were identified by touch and compared with the markings on the skin. RESULTS: In all ten patients the preoperatively indicated lymph nodes were found within a one-centimeter radius. According to expert opinion, these lymph nodes were more easily identified in the subcutaneous fat than without using the projection method. CONCLUSIONS: Virtual planning of lymph node transplantations in a deep inferior epigastric artery perforator flap breast reconstruction seems feasible and can be performed quickly. This additional visual support aids the surgeon in locating the lymph nodes in the inguinal area. 9.00- 9.30 Keynote Lecture 3 THE SCIENCE OF TISSUE EXPANSION Alex MARGULIS Hadassah, Israel 9.50–11.10 SESSION 7 – ANGIOGENESIS, WOUND HEALING & BURNS Moderators Aernout LUTTUN Laurence BOON