25 results
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
Perilymphatic nodules ... septal thickening ... Diagnosis #Radiology #Pulmonary ... #HRCT #CTChest ... #Differential #RadiologyAssistant
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 ... #Pattern #Comparison ... #Table #RadiologyAssistant
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 ... Clinical #Radiology #HRCT ... #Pattern #Comparison ... #Table #RadiologyAssistant
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... along interlobular septa ... Diagnosis #Radiology #Pulmonary ... #HRCT #CTChest ... Differential #Algorithm #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
shown on HRCT is ... , interlobular septa ... Diagnosis #Radiology #Pulmonary ... Perilymphatic #Comparison ... #Diagram #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
diseases with a nodular ... centrilobular nodules ... Diagnosis #Radiology #Pulmonary ... #Differential #Comparison ... #Table #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
on the basis of HRCT ... Diagnosis #Radiology #Pulmonary ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Cardiogenic pulmonary ... incidental finding in HRCT ... Cardiogenic pulmonary ... Reticular #Pattern #Comparison ... #Table #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
in interstitial pulmonary ... Nodular or irregular ... Diagnosis #Radiology #Pulmonary ... #HRCT #CTChest ... #Differential #RadiologyAssistant
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
The HRCT shows a ... hyperaerated secondary nodules ... and secondry nodules ... Additionally there is septal ... Chronic #Fibrosis #RadiologyAssistant