A rare association syndrome, reported in several members of two families to date, characterized by arterial dissection, occurring at an early age and presenting with a range of manifestations depending on the vascular territory involved (ex. headache, dysphasia, hemiparesis), in association with cystic medial necrosis and multiple lentigines (brown and black in color and mainly affecting the skin of the trunk and extremities).

Any familial thoracic aortic aneurysm and aortic dissection in which the cause of the disease is a mutation in the MYH11 gene.

A rare vascular disease characterized by idiopathic detachment of the layers of the walls of coronary arteries, creating a false lumen which limits the main coronary flow, leading to myocardial ischemia. Clinical manifestations include acute coronary syndromes, especially ST-segment elevation myocardial infarction (STEMI), syncope, cardiogenic shock, or sudden cardiac death. The condition typically affects young women.