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Here are the most common examples of these four patterns on a chest x-ray (click image
Here are the most ... patterns on a chest ... opacities - Fine Nodular ... Solitary Pulmonary Nodule ... #Patterns #RadiologyAssistant
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
differentiate between acute ... granulomatous noduli ... are so small and ... #Acute #Chronic ... #Differential #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
considered, like acute ... between these chest ... a patient with acute ... in fact this is nodular ... #Causes #RadiologyAssistant
On the left another typical case of sarcoidosis.
In addition to the perilymphatic nodules, there are multiple
another typical case ... perilymphatic nodules ... Clinical #Radiology #CTChest ... Peribronchovascular #Nodular ... #RadiologyAssistant
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
These are often ... are absent or few ... are visible, the ... Pulmonary #HRCT #CTChest ... Differential #Algorithm #RadiologyAssistant
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
Perilymphatic nodules ... are most commonly ... and the nodular ... Pulmonary #HRCT #CTChest ... #Differential #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Nodular LCH: - Sarcoidosis ... Cystic LCH: - LAM ... Diagnosis #Radiology #CTChest ... Comparison #Table #RadiologyAssistant
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
Bilateral peripheral consolidations ... demarcated. - Consolidations ... and dilatation are ... Clinical #Radiology #CTChest ... Pneumonia #ILD #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
multiple ill-defined nodules ... left lung, which are ... probably consolidations ... Radiology #CXR #CTChest ... SepticEmboli #Cavity #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
Probably we are ... with multifocal consolidations ... diagnosis of chronic consolidation ... The lab-findings ... OrganizingPneumonia #BOOP #RadiologyAssistant