AVM

A brain AVM disrupts the vital exchange of blood between the lungs and heart.

It’s unclear what causes a brain AVM.

The “mooring stones” and the more recent “AVM Stone” are best regarded as well-meaning attempts to corroborate an original find, the authenticity of which is highly suspect.

As a result of this suggestion, it has become known as the “Ave Maria Stone,” or the “AVM stone.”

In addition, the AVM Stone apparently also carries the runic date of 1363, which would conveniently connect it to the same event alleged to be recorded on the original Kensington stone.