10 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
, nodular, high ... On a Chest X-Ray ... in many cases UIP ... #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 ... x-ray (click image ... Interstitial - Reticular ... mass - Solitary Pulmonary ... Diagnosis #Clinical #Radiology
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
pattern of pulmonary ... On a chest X-ray ... A HRCT is needed ... #Clinical #Radiology ... #CXR #UIP #Reticular
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
cysts (LAM, LIP ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
morphologic findings on HRCT ... findings of NSIP, UIP ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD
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 ... bronchiectasis) #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Algorithm #ILD
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
show very similar HRCT ... throughout the whole lung ... Clinical #Diagnosis #Radiology ... #CTChest #UIP # ... Comparison #Chronic
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
Thickening of the lung ... Nodular or irregular ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #CTChest #Reticular
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
nodules and masses ... + Nodular opacities ... Exclusion of other ILDs ... ground glass or reticular ... confirmatory findings on HRCT
Authors: Mark M. Ramzy, DO, EMT-P (@MarkRamzyDO, EM Resident Physician, Drexel University, Department of Emergency Medicine)
(@MarkRamzyDO, EM ... Hamilton, MD (EM ... wall, a chest x-ray ... #Radiology #CTChest ... #Lung #Pulmonary