9 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... there are four patterns ... : reticular, nodular ... seen and in many cases ... RadiologyAssistant
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... Interstitial - Reticular ... opacities - Fine Nodular ... Consolidation #Patterns ... #RadiologyAssistant
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
the overlap in differential ... thickening in the reticular ... pattern. ... #Differential # ... RadiologyAssistant
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 ... #Pattern #MultipleNodules ... #Algorithm #RadiologyAssistant
Key findings in alveolar proteinosis
- Crazy paving pattern: reticular pattern superimposed on ground glass opacification.
- Opacifications
- Crazy paving pattern ... : reticular pattern ... interlobular and intra-lobular ... This is caused by ... #CrazyPaving #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
chest film is a reticular ... patern and that's ... recognized that this pattern ... was caused by multiple ... Histiocytosis #Cystic #RadiologyAssistant
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 ... Interpretation #Algorithm ... #ILD #RadiologyAssistant
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... tract, and often causes ... and bullous or vesicular ... - (C-ANCA) pattern ... - (P-ANCA) pattern
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... has a limited differential ... Nodular or irregular ... SeptalThickening #Differential ... #RadiologyAssistant