Left ventricular aneurysm differential diagnosis

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Seyedmahdi Pahlavani, M.D. [2]

Differential diagnosis

• True LV aneurysm must be differentiated from false aneurysms.

True LV aneurysm	False LV aneurysm
Mostly apical (anterolateral)	Mostly inferoposterior
Wide mouth	Narrow mouth
Wall composed of LV myocardial remnants and fibrous tissue	Wall made by parietal pericardium
Almost never ruptures	Often ruptures
May contain thrombus	Almost always contain thrombus

• Left Ventricular Diverticulum is another differential diagnosis of LV aneurysm.
• Left ventricular diverticulum is defined as an outpouching structure that contains endocardium, myocardium, and pericardium and displays normal contraction and considered to be congenital.