41 results
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... centrilobular nodules ... Sarcoidosis: nodules ... sparing of the area ... #Pattern #Comparison
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
diseases with a nodular ... pattern. 1. ... the subpleural area ... #Pattern #NodularPattern ... #Differential #Comparison
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... Sarcoidosis: nodules ... histiocytosis: early nodular ... HRCT #CTChest #Nodular ... #Pattern #Comparison
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... These are often ... are absent or few ... pattern is either ... #Pattern #MultipleNodules
The distribution of nodules shown on HRCT is the most important factor in making an accurate
pattern. ... Nodules are almost ... are limited to ... #Pattern #Distribution ... Perilymphatic #Comparison
Here are the most common examples of these four patterns on a chest x-ray (click image
Here are the most ... of these four patterns ... opacities - Fine Nodular ... Solitary Pulmonary Nodule ... Consolidation #Patterns
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 ... perilymphatic nodules ... and the nodular ... the reticular pattern
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On HRCT there are ... four patterns: ... reticular, nodular ... we are dealing ... The cystic pattern
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation pattern ... with peripheral areas ... presenting as areas ... HighAttenuation #Pattern ... #Comparison #Table
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
: Mosaic pattern ... atenuation and areas ... shows a mosaic pattern ... hyperaerated secondary nodules ... and secondry nodules