A rare – or not so rare – condition? Restrictive cardiomyopathies, caused by primary pathologies of the heart muscle, are considered rare diseases, corresponding to about 5% of all cardiomyopathies. The most frequent form of restrictive cardiomyopathy is cardiac amyloidosis (CA), which can be considered a benchmark since, with the availability of diagnostic technologies, its detection has been made much more frequent, associated with the fact that there are effective treatment possibilities. […]