CTICasesCardiac and Pulmonary Sarcoidosis
Imaging findings
Cardiac MRI shows severe mid-myocardial and subepicardial late gadolinium enhancement in the septum and free walls. Chest CT shows diffuse perilymphatic pulmonary micronodules (galaxy sign) without adenopathy. Endomyocardial biopsy confirmed sarcoidosis.
Key takeaways
Cardiac sarcoidosis is a high-risk manifestation presenting with arrhythmias/syncope. MRI shows non-ischemic patchy LGE. Lung CT showing perilymphatic micronodules (galaxy sign) is a key clue to the underlying etiology.
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