Diagnostic approach to the patient with diffuse lung disease

Detecting diffuse lung infiltrates on chest radiography is a common clinical problem. Man diverge pathological processes can cause diffuse lung disease. The presentation of these diseases can vary from acute to chronic and includes a wide array of radiological patterns that are optimally evaluated on high-resolution computed tomography of the chest. In diagnosing diffuse lung disease, it is helpful focus on a few pivotal. parameters to narrow the broad differential diagnosis. We describe the diagnostic approach to a patient with,diffuse lung disease using, the key parameters: tempo of the pathological process characterisitics of the radiological pattern, and clinical context.