Join Kieran and Jose in the second part of a special series-opener on the topic of feline cardiology, focusing on echocardiographic findings in cats with cardiomyopathy.  Here, we delve into the topic of differentials for left ventricular hypertrophy (so-called phenocopies of HCM), prognostic factors associated with morphology, and when to intervene in pre-clinical cats with a hypertrophic phenotype.