CT scan may be helpful when underlying cause of<unk>  effusion is not certain example in malignant<unk>  effusion. In most cases CT imaging may not provide additional information that would influence the clinical decision-making process. Routine use of high-resolution chest CT is recommended for early diagnosis and timely treatment of<unk>  disease in children with juvenile idiopathic arthritis. CT scan shows heterogeneous opacification of the affected side and cardiomediastinal shift to the opposite site in unilateral effusion.
Pleural effusion CT
Pulmonary edema CT
Pleural effusion chest x ray
Cough chest x ray
Lung abscess CT
Pneumonia CT
Hemoptysis x ray
Atelectasis CT