ACUTE MYOCARDITIS IN AN IMMUNOCOMPROMISED PATIENT: WHEN CARDIAC MAGNETIC RESONANCE CONNECTS THE DOTS

This case report presents a 34-year-old immunocompro­mised male with multiple sclerosis on long-term B-cell depletion therapy, developing severe acute myocarditis (AM) complicated by life-threatening arrhythmias. The initial presentation mimicked acute coronary syndrome (ACS) and pulmonary pathology, delaying diagnosis. Cardiac magnetic resonance imaging (CMR) was cru­cial for confirming diffuse myocardial involvement and guiding management. This case emphasizes the value of early CMR in immunosuppressed patients with atypical presentation, where conventional diagnostic tools may be insufficient.