coma after sever fall on the back of head

My little brother has been in a coma for 3 days now after sustaining a head injury to the back of the head while falling backwords on pavment. Right now hospital says that he is in "stable" condition, but would not provided prognosis, which is kind of scaring me.

I am hoping to find a medical doctor or exper who can read the report and provide with at least diagnosis and prognosis. What is the severity of the injury? What is the likelyhood he will wake up from his coma? How long are usually for this kind of case? I need some peace of mind. This report has a lot of medical sense that only a doctor will make sense of the situation.

Medical report:

Technique: Non contrast CT scan of the brain with multiplanar reconstractutions and VRT

Findings:
Multiple comminuted fractures of teh skull base are seen involving the left occipital bone and extending through the mastoid and petrous part of left temporal bone. Another transverse fracture is also notes at base of right petrouis bone.  Fracture of the body sphenoid reaching up to the sella turcica.
High density material (average 40HU) is seen filling both nasal fossae ethmoidal aircells and both sphenoid sinus compartments as well as left mastoid aircless and middle ear cavity.
Large cephalhmeatomas are noted at the left occipitopareiral region.
Diffiuse attenuation of cortical sulci, fissures, basal and perimesencepahlic cisterns and makred narrowing of cerberal.
Totoal loss of gray-white matter descrimination
fresh bloood density is nited within the basal cisterns.

[Tadt]

I know that this is one of the hardest things you have ever had to go throught.  My son was in a coma for 3 weeks, I was told he would never wake up.  He bled through 90% of his brain.  I stayed with him, made sure his vent was clear, talked to him whenever someone had to do a proceedure on him.  Told him to rest and heal,  sent him love and was just ther for him.  Even though his prognosis was bad, he woke up.  I moved him to a neuro rehab, we spent a month there, he learned to sit up, eat, drink, walk talk, do math, read ect.  

Today he is back driving,  taking classes at the local college, we are far from where he was before, but no where close to where the doctors said he would be.  

All head injuries are different.  You have to be there for him.  Let him know that you are there,  Love him,  Make sure the doctors are doing the right thing. And believe in Miracles.

[dossie0b]

miss tadt, thanks for your encouraging words. However, my brother lost his battle with coma. He passed away couple of days ago. The injury was so trumatic for him to recover. Its amazing you can learn on a topic once it affects your family. Basically, if someone in a coma, they need to be examined clinically and have an EEG test performed. Even when someone in a coma, their pupils must respond to light and bodys to painful stimuli. Also, EEG reading must not come back to flat to indicate some brain activity. My brother had neither, so I knew the odds, but I didn't tell my mother.

I am sure he is a in a better place now. You have a beautiful family. God bless you all.