My cat has an extremely straight line going under her chin and up the sides of her jaw?

My friends and I believe it is a swollen vein. My vet is unsure of what it is and suggested a dermatologist, which is rather expensive. She is…

ASKED BY Calypso on 12/18/12
TAGGED vein, swollen, unknown, donotknowwhathappened, dematology, skinproblem IN Skin Problems