This observational study aims to evaluate myocardial perfusion abnormalities using quantitative and qualitative cardiac magnetic resonance (CMR) perfusion imaging in patients with hypertrophic cardiomyopathy (HCM) phenotypes, including sarcomeric and non-sarcomeric HCM, Anderson-Fabry disease (AFD), and cardiac amyloidosis. The study will also include first-degree relatives of affected patients and genetic mutation carriers. By comparing myocardial blood flow and perfusion patterns across these different conditions, the study seeks to identify distinctive perfusion signatures that may improve diagnostic differentiation, support risk stratification, and provide insights into the role of ischemia in fibrosis progression, arrhythmias, and long-term outcomes.