Cardiac Sarcoidosis (CS) is a potentially life-threatening manifestation of sarcoidosis that presents significant diagnostic and management challenges. While only 2-5 % of patients with sarcoidosis are diagnosed with CS, autopsy studies have demonstrated a prevalence as high as 25 % suggesting the condition is often under recognized likely because of lack of or nonspecific symptoms or diagnostic limitations. Considering the unreliability and invasiveness of endomyocardial biopsy, cardiac magnetic resonance imaging (CMR) and Fluorodeoxyglucose F18 (FDG) positron emission tomography (PET) have become useful diagnostic modalities in suspected cases of CS. However, there is scarce data in support of one imaging modality over the other and each has its limitations. Such limitations are depicted in the case of a patient with complete heart block and newly diagnosed sarcoidosis showing conflicting results on FDG-PET and CMR. A narrative review of current knowledge on this condition and about the imaging modalities available for the workup of CS is provided.