Comment on the diagnosis of CT chest shown below.

Normal Anatomy in CT Chest: Aoic dissection: M/C site of aoic dissection is Ascending aoa Intimal flap with double lumen is seen IOC for acute aoic dissection CT angiogram (stable pt.) TEE (unstable pt.) In Chronic aoic dissection: IOC: MRI Signs of FALSE LUMEN: Cob Web Sign: Irregularities of False lumen Beak Sign: False lumen forms acute angle with True lumen: SADDLE EMBOLUS: PULMONARY EMBOLISM - Filling Defect seen in Pulmonary aery - IOC for PE: CT Angiography Left atrial Myxoma: - Low annotating hypodense lesion on the posterior most chamber of the hea (Left Atrium) - MC primary Benign cardiac tumor in adults - MC in females - Has dystrophic calcifications Thrombosis within walls of aoic aneurysm : Aoic aneurysm: - Involve either ascending aoa, thoracic aoa & abdominal aoa - Syphilitic aoitis commonly involve ascending aoa causing aoic aneurysm - M/C cause for abdominal & thoracic aoic aneurysm - Atherosclerosis Ascending aoic aneurysmAbdominal aoic aneurysm (axial & coronal view)