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Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
: Mosaic pattern ... atenuation and areas ... shows a mosaic pattern ... Radiology #CXR #CTChest ... Chronic #Fibrosis #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity ... pneumonitis: ill ... Diagnosis #Radiology #Pulmonary ... #CTChest #Nodular ... Comparison #Table #RadiologyAssistant
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Pneumonitis, Respiratory ... HiRes #HighRes #Chest ... #CT #Patterns #
This patient presented with acute dyspnoe and a normal chest film (not shown).
The HRCT at presentation
dyspnoe and a normal chest ... shows lobular areas ... pneumonitis. ... Clinical #Radiology #CTChest ... #Resolution #RadiologyAssistant
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
pneumonitis (2) ... scan: the mosaic pattern ... with a mozaic pattern ... Clinical #Radiology #CTChest ... #Fibrosis #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
in ground glass pattern ... distribution: Hypersensitivity ... pneumonitis, Respiratory ... Diagnosis #Radiology #Pulmonary ... #CTChest #GGO #
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
like idiopathic pulmonary ... fibrosis in chronic hypersensitivity ... pneumonitis and ... Clinical #Radiology #CTChest ... DrugRelated #Fibrosis #RadiologyAssistant
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
The dominant pattern ... would first think hypersensitivity ... pneumonitis, but ... Clinical #Radiology #CTChest ... RespiratoryBronchiolitis #ILD #RadiologyAssistant
Authors: Mark M. Ramzy, DO, EMT-P (@MarkRamzyDO, EM Resident Physician, Drexel University, Department of Emergency Medicine)
suffered no head trauma ... This post will focus ... to the chest. ... radiograph pattern ... #Radiology #CTChest