It is possible. To have neck swelling of the neck from whiplash injury, the ligament in the back of the neck could get inflamed or have sprain in it. Good luck, thank you.
Inflamation. Related to inflation of tendons ligaments and otjer soft tissues after aceleration decelaration.
Team Approach. Swelling can often occur with whiplash injuries. It is wise to have a team of providers, Medical Doctor, Doctor of Chiropractic, Doctor of Physical Therapy, and a massage therapist.