Introduction: Tissue surrounding the superficial inferior epigastric vein (SIEV) can be harvested for vascularised lymph node transfer (vLNT) for the treatment of lymphoedema. The aim of this study is to define the anatomical relationship of lymph nodes surrounding the SIEV.
Methods: Twenty-five fresh-frozen cadaveric groin specimens were harvested en bloc to the level of the deep fascia along the following anatomical boundaries, yielding quadrilateral tissue blocks: pubic tubercle (medial), anterior superior iliac spine (lateral), 5 cm superior and inferior to the inguinal ligament. The SIEV was marked at its entry point with the femoral vein. Specimens were oriented, secured and fixed in formaldehyde and analysed using longitudinal slices at 3 mm intervals.
Results: A total of 86 lymph nodes were identified. The average position of lymph nodes examined was 0.4 cm medial and 3.2 cm inferior to the mid-inguinal point.
Clinical Relevance: An improved understanding of the anatomical locations of lymph nodes surrounding the SIEV will allow a more purposeful harvest during vLNT, allowing a greater number of lymph nodes to be captured whilst limiting donor site morbidity.
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