32 results
Approach to the diagnosis of chronic hypersensitivity pneumonitis. 
*Consider additional test: bronchoscopy with bronchoalveolar lavage, transbronchial
pneumonitis. ... pneumonitis; HRCT ... computed tomography; UIP ... #hypersensitivity ... #diagnosis #algorithm
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
alveolitis): • Hypersensitivity ... pneumonitis, Farmer's ... ILD caused by inhalation ... • Radiation pneumonitis ... differential #pulmonary #causes
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Causes of Interstitial ... Differential Diagnosis Algorithm ... Pneumonia • (UIP ... Chronic Radiation Pneumonitis ... Diseases #ILD #Causes
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... histiocytosis - Hypersensitivity ... pneumonitis - Sarcoidosis ... is seen in: - UIP ... edema #Diagnosis #Radiology
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
or interstitial lung ... predominance: UIP ... distribution: Hypersensitivity ... pneumonitis, Respiratory ... #Pulmonary #CTChest
Subacute hypersensitivity pneumonitis
The key findings in the subacute hypersensitivity pneumonitis are:
ill-defined centrilobular nodules of ground-glass opacity
pneumonitis The ... opacity (80% of cases ... opacity due to lung ... #Clinical #Radiology ... #CTChest #Hypersensitivity
Here another case of hypersensitivity pneumonitis.
There is a mosaic pattern.
Some secundary lobules demonstrate ground-glass opacity due
Here another case ... pneumonitis. ... opacity due to lung ... #Clinical #Radiology ... #CTChest #Hypersensitivity
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
Fibrosis H - Hypersensitivity ... Therefore, conditions caused ... by a rigid chest ... antigens: - Hypersensitivity ... #STARCHASERS #radiology
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
idiopathic interstitial pneumonias ... indicates unknown cause ... findings of NSIP, UIP ... #Diagnosis #Radiology ... #Pulmonary #CTChest
On the left a chest film of a patient with UIP due to IPF.
The findings on
a patient with UIP ... changes in the basal lung ... reticular densities caused ... #Clinical #Radiology ... #Interstitial #Pneumonitis