12 results
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
Perilymphatic nodules ... thickening in the reticular ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #CTChest #Perilymphatic
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On HRCT there are ... , nodular, high ... On a Chest X-Ray ... #Diagnosis #Radiology ... #Pulmonary #CXR
Here are the most common examples of these four patterns on a chest x-ray (click image
patterns on a chest ... - Reticular interstitial ... Nodule or mass ... - Solitary Pulmonary ... Diagnosis #Clinical #Radiology
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... bronchovascular interstitium ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #CTChest #NodularPattern
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
pulmonary edema ... Nodular or irregular ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #CTChest #Reticular
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
The HRCT shows a ... and secondry nodules ... and intralobular reticular ... #Clinical #Radiology ... #CXR #CTChest #
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
dominant HR-pattern: reticular ... nodular high attenuation ... #Pulmonary #HRCT ... #CTChest #Interpretation ... #Algorithm #ILD
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... Cardiogenic pulmonary ... peribronchovascular interstitium ... #Clinical #Radiology ... #HRCT #CTChest
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
histologic pattern of pulmonary ... On a chest X-ray ... A HRCT is needed ... #Clinical #Radiology ... #Interstitial #
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
skin (esp. over areas ... -> Rheumatoid Nodules ... Ulcers, Livedo reticularis ... tends to cause interstitial ... lung disease/pulmonary