As for the BCs being healthy thing...I guess I just know a lot of BCs with orthopedic issues (toes seem to be an area of weakness, quite a lot of hip issues that are often not reported to OFA, etc.)...
Seems like some of the breed proported to be healthy in terms of being long-lived are also some of those that are notorious for temperament instability. I guess no breed is perfect :s
A question for you though, for FCRs, is the cancer, one of a certain area? or it shows up anywhere? Also does it usually take quite a long time for it to spread? Or it's really different with every dog?
It's not one particular area of the body or one particular type of cancer. Soft-tissue sarcoma is the single leading cause of death in the breed, which has its own particularly aggressive histiocytic sarcoma. Malignant histiocytomas are rare in canines
except in FCRs and Berners. Some of the likely cancers are treatable while others are, for all intents and purposes, not. At least one study has found that approximately 50% of a sample population of FCRs died on average around age 8-9 from any one of various cancers...those who survived past the 9th year mark were likely to make it to 12-13. Granted that was a couple hundred dogs from volunteers, but still.
There is a rather extensive study going on, and studies have been going since at least 1990, regarding various cancers in FCRs but for now, this is more or less where things stand. A lot of the problems stem from the gene pool collapse around the world war...FCRs fell out of favor for a while (ironically the Golden Retrievers, which were at one time the same breed as FCRs until the yellows were split off, retained their popularity) and so now all FCRs are very closely related, though still not as closely as other breeds (I've seen at least one report that Tollers are so closely related that any Toller is nearly genetically equivalent to at least a half-sibling of any other Toller, but haven't researched it myself).