The last Paed report said DS1 was microcephalic - even though she did not measure his head at that appointment (was looking at old measurements). Today she measured his head and on the 0-5 chart, he is at the low end of normal, and on the 5-12 chart, his head measurement is well above the line for microcephaly
So not really that important in the grand scheme of things but shows you should ask when you are doubtful. It is annoying though that she sent a copy of the first attempt at a dx to all the other professionals who probably saw it as gospel because a Paed said it.
Now I can stop mentally measuring every child I see !