Fig. 2From: Retroperitoneoscopic lumbar sympathectomy for the treatment of primary plantar hyperhidrosisA Exposure of L3 sympathetic nerve during RLS. Sympathetic nerve is identified in the medial aspect of the psoas muscle. On the right side, the sympathetic chain lies posterior to the inferior vena cava. B On the left side, the sympathetic chain lies posterior and lateral to the infra-renal aortaBack to article page