Does the physical size of a Cavalier have any bearing on the development of SM ,ie are breed size more susceptible .?
Secondly if not would a larger size Cavalier who developed SM be less affected because they would have a larger skull .? And also do we know if SM is definately an inherited condition and lastly if a Cavalier has been diagnosed with CM do they automatically develop SM .
Sorry if these are questions are going over old ground .