Hi,
Thank you for posting your query.
I have noted your nephews symptoms and diagnosis.
The fitness for flying depends on the severity of
injury,
CT scan findings and patient's clinical condition.
The fact that your nephew did not require surgery suggests that the injury is not severe.
If his clinical condition is good, he would be fit to fly.
It would be useful if you can upload a copy of his CT scan report here.
I hope my answer helps. Please get back if you have any follow up queries or if you require any additional information.
Wishing you good health,
Dr Sudhir Kumar MD (Internal Medicine), DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad, India
Click on this link to ask me a DIRECT QUERY: http://bit.ly/Dr-Sudhir-kumar
My BLOG: http://bestneurodoctor.blogspot.in