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Sometimes the centrilobular opacities are more nodular in appearance as in this case. #Clinical #Radiology #CTChest
opacities are more nodular ... #Clinical #Radiology ... #CTChest #Hypersensitivity ... #Pneumonitis #HypersensitivityPneumonitis ... #Nodular #Centrilobular
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... centrilobular nodules ... #Clinical #Radiology ... #HRCT #CTChest ... #Nodular #Pattern
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... histiocytosis: early nodular ... #Clinical #Radiology ... #HRCT #CTChest ... #Nodular #Pattern
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
diseases with a nodular ... histiocytosis: early nodular ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
in differential diagnosis ... and the nodular ... #Diagnosis #Radiology ... Pulmonary #HRCT #CTChest ... Perilymphatic #Nodular
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... centrilobular nodules ... #Diagnosis #Radiology ... Pulmonary #HRCT #CTChest ... NodularPattern #Nodular
Here are the most common examples of these four patterns on a chest x-ray (click image
patterns on a chest ... opacities - Fine Nodular ... Solitary Pulmonary Nodule ... Masses Atelectasis #Diagnosis ... #Clinical #Radiology
Here another case of subacute hypersensitivity pneumonitis.
There is subtle opacity in the centre of the secondary
#Clinical #Radiology ... #CTChest #Hypersensitivity ... #Pneumonitis #HypersensitivityPneumonitis ... #Nodular #Subacute
On the left another typical case of sarcoidosis.
In addition to the perilymphatic nodules, there are multiple
perilymphatic nodules ... #Clinical #Radiology ... #CTChest #Sarcoidosis ... Peribronchovascular #Nodular
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
hyperaerated secondary nodules ... and secondry nodules ... #Clinical #Radiology ... #CXR #CTChest # ... #Pneumonitis #HypersensitivityPneumonitis