
PSSM2 – An Umbrella Term for Various Myopathies
Reading Time: 2 minutes When the term PSSM2 (Polysaccharide Storage Myopathy 2) was introduced, it was used to group together all horses that displayed the same pattern under exertion as PSSM1 horses, but in which the mutation responsible for PSSM1 could not be detected. As research progressed, it became clear that PSSM2 is not