Another Update: 
I FINALLY got the results back yesterday!  NORMAL!!!!  All normal - of course except for the fact that's he's 3 and his fontanel is still open.  But everything looks completely healthy and great inside his brain!  And I'm not worried for one minute about that fontanel .  "L"  has always followed his own time schedule with everything.  He has taught me patience in these past 3 years.  He has taught me that not everything can have a schedule.  He continues to teach us these things.  What an incredibly emotional week.  I am certainly humbled in the presence of God's power and grace that allowed us to make it through this week.  And I am so forever thankful to all of the prayers we received.

Update:  The MRI went well.  He handled the sedation well, and was brave, just like I predicted.  It did take them about 15-20 minutes longer than normal, because he kept coughing.  They had to pull him out of the machine a couple of times and suction out his nose/mouth, and start taking the picture over.  The first thing he said to me after waking up:  "I am ready for my donut now."  (I had promised him a trip to get a donut - a rare treat around here) I love it!  Anyways, we don't have any sort of results yet, hopefully in the next couple of days we will get more information.  I hate the waiting, but I feel at peace.

Can you do me a favor, please?
Can you keep this sweet, sweet boy in your prayers tonight?