13 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
lung disease comes ... low attenuation (table ... lung disease and ... seen and in many cases ... Diagnosis #Radiology #Pulmonary
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... on a chest x-ray ... consolidation - Diffuse ... mass - Solitary Pulmonary ... Nodule - Multiple Masses
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... bronchovascular interstitium ... the nodules are diffuse ... Diagnosis #Radiology #Pulmonary ... HRCT #CTChest #NodularPattern
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Limitation • Interstitial ... lung disease ... Abnormalities • Chest ... #Causes #Pulmonary
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... have specific patterns ... realise, that these patterns ... Diagnosis #Radiology #Pulmonary
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Differential Diagnosis Algorithm ... Artery Disease • Stable ... Chest Wall Abnormalities ... Interstitium
The distribution of nodules shown on HRCT is the most important factor in making an accurate
In most cases small ... peribronchovascular interstitium ... structures of the lung ... Diagnosis #Radiology #Pulmonary ... #HRCT #NodularPattern
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... consolidation and GG pattern ... eosinophilia pneumonia, Pulmonary ... lymphoma, Diffuse ... Pneumonia #COP #BOOP #pulmonary
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
of pulmonary fibrosis ... On a chest X-ray ... particularly at the lung ... at the lung bases ... UIP #Reticular #Interstitial
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
Thickening of the lung ... cells results in a pattern ... lung disease, it ... differential diagnosis (Table ... Kerley B lines on chest