Flap dissection of neck was done under bloodless field. A contusion involving the subcutaneous tissue, 6.5x4.5x0.5cm, was seen on lower part of right side of front of neck, 7cm outer to midline and just above the collar bone. Another contusion, 5x3x0.5cm, was seen on right side of front of neck, 5cm outer to midline and 3cm below the lower jaw margin, along the front border of right sterno-cleido-mastoid muscle. Multiple infiltrations of blood were seen over the inner border of the middle part of right sternohyoid muscle at the level of Adam's apple (2x1x0.3cm), inner border of middle part of left sternohyoid muscle at the level of Adam's apple (3.5x1x0.3cm) and front aspect of right sternothyroid muscle at the level of Adam's apple (2.5x1.5x0.3cm). Contusion, 4.3x1x0.5cm, was seen along the lateral border of right side of tongue, 3cm behind its tip. Another contusion, 3x1x0.3cm, was seen along the lateral border of left side of tongue, 4cm behind its tip. Subcutaneous tissue underneath the pressure abrasion appeared normal. Other strap