622 results
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
the overlap in differential ... Diagnosis #Radiology #Pulmonary ... #HRCT #CTChest ... Perilymphatic #Nodular #Differential ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
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Diagnosis #Radiology #Pulmonary ... #CTChest #LowAttenuation ... #Differential # ... Emphysema #SignetRing #RadiologyAssistant
Tree-in-bud
In centrilobular nodules the recognition of 'tree-in-bud' is of value for narrowing the differential diagnosis.
Tree-in-bud describes
narrowing the differential ... Pathophys #Radiology #Pulmonary ... #CTChest #TreeInBud ... #Diagram #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
Diagnosis #Radiology #Pulmonary ... #CTChest #Consolidation ... #Differential # ... RadiologyAssistant
Tree-in-bud almost always indicates the presence of:
Endobronchial spread of infection (TB, MAC, any bacterial bronchopneumonia)
Airway disease
Diagnosis #Radiology #Pulmonary ... #CTChest #TreeInBud ... #Differential # ... RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... Cardiogenic pulmonary ... #CTChest #LymphangiticCarcinomatosis ... Carcinomatosis #Mimic #Differential ... Comparison #Table #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Diagnosis #Radiology #Pulmonary ... #CTChest #Nodular ... NodularPattern #Differential ... Comparison #Table #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
Diagnosis #Radiology #Pulmonary ... #CTChest #GGO # ... #GroundGlass #Differential ... #RadiologyAssistant
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Diagnosis #Radiology #Pulmonary ... #HRCT #CTChest ... MultipleNodules #Nodules #Differential ... #Algorithm #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
In the differential ... To differentiate ... without associated pulmonary ... Diagnosis #Radiology #CTChest ... Emphysema #Comparison #RadiologyAssistant