Dear doctor I am the father of the patient my son who is 13 years old.  I am from India.  During our journey to our native, while travelling in bus, my son fell from top of the sleeper coach and hit his head resulting in swelling on back that is top right corner of the head.  He is normal right now and   swelling also subsided.  Should I take him for CT scan or not is my question please.
Cellophane You for contacting Chat Doctor. Swelling in such cases occurs due to hematoma formation(accumulation of blood beneath skin) due to damage to superficial vessels which resolves itself after a while. I would suggest you to monitor your child closely for following signs which is appear then needs immediate medical attention followed by CT head.