[Cardiac sarcoidosis in 2026 : current perspectives].

Symptomatic cardiac sarcoidosis occurs in approximately 5 % of patients with systemic sarcoidosis. It may manifest as arrhythmias, including atrioventricular block or ventricular tachycardia, heart failure, or sudden cardiac death. Due to the substantial morbidity and mortality associated with this condition, prompt and accurate detection is paramount. While endomyocardial biopsy remains the standard diagnostic modality, its sensitivity is limited, estimated at approximately 20 %. Consequently, a thorough clinical evaluation, incorporating advanced imaging techniques such as [18F]-fluorodeoxyglucose positron emission tomography/computed tomography and cardiac magnetic resonance imaging, is essential for accurate diagnosis and risk stratification.