The differential diagnoses of<unk>  includes constrictive pericarditis, restrictive cardiomyopathy, pericardial effusion, and severe right-sided heart failure. With cardiac tamponade, jugular veins are distended and typically show a prominent x descent and an absent y descent as opposed to patients with constrictive pericarditis (prominent x and y descent), see Beck's triad. Other possible causes of<unk>  include: * Right ventricular infarction - low ventricular compliance * Right heart failure * Cardiac tumours * Tricuspid stenosis * Restrictive cardiomyopathy * Pulmonary embolism * Constrictive pericarditis
Kussmaul's sign
Bancroft's sign
Adson's sign
Fothergill's sign
Piskacek's sign
Litten's sign 
Litten's sign
Peabody's sign