Hi! I know, you two did converse in 2014 but I stumbled upon you just now. Perhaps you are still active in some sort of way. My son Lars, now 2,5 yrs was diagnoesed with Renpenning in april after almost one year of searching a cause for his slow development. I am the carrier. Due to the rareness it would be very nice to listen to other families. My email is kiki1112@gmx.de