what causes head/face asymmetry?

[Guest guest]

I took my 12+ week old daughter for her first PT appointment today.

Apparently she does not have typical torticollis. She has no tight

muscles. Instead, she has weak neck muscles. I learned a bunch of

exercises, and expect that to improve.

BUT, I am wondering what, then, is responsible for the asymmetry of her

head and face? She has prominent bones toward the back of her head on

each side. At the very back, her head is very rounded (not at all

flat). She has a flat area above her left eye, and the left top of her

face is retracted compared the right top of her face.

Any info, anyone?

TIA!

Toni