12 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
there are four patterns ... : reticular, nodular ... low attenuation (table ... 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 ... Nodule or mass ... - Solitary Pulmonary ... Masses Atelectasis ... Consolidation #Patterns
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... are visible, the pattern ... bronchovascular interstitium ... #Pattern #MultipleNodules
The distribution of nodules shown on HRCT is the most important factor in making an accurate
pattern. ... In most cases small ... peribronchovascular interstitium ... Diagnosis #Radiology #Pulmonary ... #Pattern #Distribution
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
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... consolidation and GG pattern ... irregular lines, nodular ... eosinophilia pneumonia, Pulmonary ... Pneumonia #COP #BOOP #pulmonary
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... differential diagnosis (Table ... pulmonary edema ... Nodular or irregular ... Diagnosis #Radiology #Pulmonary
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
inflammation of the upper ... tract, and often causes ... inflammatory lesions-interstitial ... - (C-ANCA) pattern ... - (P-ANCA) pattern
Progressive Massive Fibrosis aka Complicated Silicosis.
Silicosis is a fibrotic lung disease caused by inhalation of crystalline
fibrotic lung disease caused ... coalescence of the nodules ... bilaterally in the upper ... typical eggshell pattern ... XRay #labeled #pulmonary
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... : reticular nodular ... random) Is there an upper ... Diagnosis #Radiology #Pulmonary ... Interpretation #Algorithm