This case depicts CT findings of constrictive pericarditis.
Common causes of constrictive pericarditis include injury, infection, radiotherapy. Radiotherapy is most likely cause in this patient.
CT/MRI can aid in diagnosis, as clinically constrictive pericarditisand restrictive cardiomyopathy are similar. CT shows thickening (>4mm) of pericardium, most commonly in anterior portion
It should however, be accompanied by clinical signs of heart failure. Imaging signs that suggest heart failure (especially right heart) are: dilated RA, dilated hepatic veins, dilated IVC to more than twice aortic diameter, periportal edema, enlarged SVC > adjacent aorta, reflux of contrast into IVC and distal hepatic veins (proximal reflux can be seen with high flow rates).