Intra-operative photographs. (a) After partial dissection of the retroperitoneum followed by protective retraction of the right external iliac artery (E.I.A.) and external iliac vein (E.I.V.), a gross outline of the pseudotumoral lesion (surrounded by dotted curved line) within the iliac muscle is seen. (b) Complete drainage of the hematoma, which is shown by the dotted curved line in (a). Part of the acetabular cup through the “vanishing” acetabular (innominate) bone is seen. Arrows show direction: D, distal; Lt., left; Med., medial.