66 results
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
pneumonitis The ... Mosaic pattern with areas ... atenuation and areas ... Radiology #CXR #CTChest ... Chronic #Fibrosis #RadiologyAssistant
Ill defined centrilobular nodules of ground glass density in a patient with hypersensitivity pneumonitis #Clinical #Radiology
a patient with hypersensitivity ... pneumonitis #Clinical ... #Radiology #CTChest ... #Hypersenstitivity ... Centrilobular #RadiologyAssistant
Exposure Related ILD

 • Hypersensitivity pneumonitis
 • Pneumoconioses 
 • Radiation pneumonitis
 • Medication-induced ILD

Andrew Sanchez
Related ILD • Hypersensitivity ... pneumonitis • ... • Radiation pneumonitis ... #Related #ILD #diagnosis ... #pulmonary #Interstitial
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Hypersensitivity ... pneumonitis: ill ... Hypersensitivity ... Radiology #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
distribution: Hypersensitivity ... pneumonitis, Respiratory ... bronchiolitis #Diagnosis ... Radiology #Pulmonary #CTChest ... #Differential #RadiologyAssistant
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
alveolitis): • Hypersensitivity ... pneumonitis, Farmer's ... • Radiation pneumonitis ... Pneumonias: • ... Diseases #ILD #diagnosis
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
- Differential Diagnosis ... lung as nodules Hypersensitivity ... - Immunologic (hypersensitivity ... Chronic Radiation Pneumonitis ... #Differential #Diagnosis
Cystic Lung Disease
Upper Lobe Predominant: 
Langerhans Cell Histiocytosis, Pneumocystis Jiroveci, Hypersensitivity Pneumonitis, Neurofibromatosis Type 1, Paracoccidioidomycosis,
Pneumocystis Jiroveci, Hypersensitivity ... Pneumonitis, Neurofibromatosis ... Syndrome, Lymphocytic Interstitial ... Interstitial Pneumonitis ... #differential #diagnosis
Approach to the diagnosis of chronic hypersensitivity pneumonitis. 
*Consider additional test: bronchoscopy with bronchoalveolar lavage, transbronchial
Approach to the diagnosis ... of chronic hypersensitivity ... pneumonitis. ... tomography; UIP = usual interstitial ... #diagnosis #algorithm
This patient presented with acute dyspnoe and a normal chest film (not shown).
The HRCT at presentation
shows lobular areas ... pneumonitis. ... Clinical #Radiology #CTChest ... #Hypersensitivity ... #Resolution #RadiologyAssistant