Incidental finding on computed tomography angiogram

ABSTRACT

A 42-year-old male presented with a history of presyncope. There was no postural hypotension or neurological cause for syncope. Electrocardiogram (ECG) only showed non-specific ST-T changes in inferior leads. Echocardiogram, exercise stress test and 24 hours holter monitoring were all normal. Computed tomography (CT) angio was done and are shown in the panels above. Q What is the diagnosis? Answer refer to page 71