CT pulmonary angiogram:
Good opacification of the pulmonary arterial system.
There is no evidence of pulmonary embolus to the subsegmental arterial level.
No pleural effusion. Apical pericardial thickening; adjacent fat is abnormal also.
No focal pulmonary parenchymal abnormality. Heart size is normal.
No CT evidence of pulmonary embolus.
Appearances are consistent with pericardial fat necrosis.