In case of IVC obstruction, the collateral which opens up are all except: (A) Superior epigastric & inferior epigastric vein, (B) Azygos& ascending lumbar vein, (C) Superficial epigastric & ileolumbar vein, (D) Lateral thoracic veins & preveebral vein
Answer is C. Superficial epigastric vein drains into the femoral vein&ileo lumbar vein drains into common iliac vein Ref: Gray's 39e/p10