Non-ischaemic intramyocardial dissection following total arch replacement.

Intramyocardial dissection (ID) is a rare left ventricular (LV) disorder characterized by myocardial fibre dissection and neocavitation. In this study, we present a rare case of a 66-year-old woman who had a history of sarcoidosis with non-ischaemic ID following total arch replacement. ID developed suddenly in the free wall of the LV and expanded rapidly to form an LV aneurysm. We successfully performed LV reconstructive surgery to prevent ID rupture.