Double shadow behind right atrium and straightening of left main bronchus indicates -
Left atrial enlargement presents radiologically with elevation of left main bronchus ( earliest feature ) ,splaying or widening of carina ,displacement of oesophagus posteriorly ,double Right hea border and prominent left atrial appendage
Right atrium enlargement
Right ventricle enlargement
Left atrium enlargement
Left ventricle enlargement
Cardiovascular system