Will Falconer, DVM Moderator
Hey Kimberlee,
As you are the second person in a month or two mentioning this syndrome, I dug a bit deeper on lessencephaly, clearly a very rare inherited illness that affects the developing fetus. It occurs in people and in dogs, with a few breeds more prone: Fox Terrier, Irish Setter, Lhasa Apso are listed. I'm doubtful much can be done, but it might be worth contacting a qualified vet homeopath (see my reply earlier to Margaret on how to choose a good one.
This being a registered Lab, the breeders need to be alerted to this, if they haven't already. Might be some genetic testing they can do, but that pair shouldn't be rebred, minimally. I'd be asking the good folks at Embark Vet if that's on their roster of DNA testing. They are very reasonable and connected to Cornell Vet School.
For those interested in the disease, here's more: https://pubmed.ncbi.nlm.nih.gov/956022/