Identification of a novel presumed cardiac sarcoidosis category for patients at high risk of disease

•Cardiac sarcoidosis (CS) may be underdiagnosed.•A “presumed” CS category incorporates characteristic clinical and imaging findings.•The presumed cohort has similar presentation and symptomatology.•No difference in a composite CV outcome was identified among the cohorts.•Cardiac sarcoid diagnosis absent histology identifies patients warranting treatment.