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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
- Lung cysts (LAM ... diseases with a ... Diagnosis #Radiology #Pulmonary ... LowAttenuation #Differential ... #SignetRing #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
consolidation as a ... the surrounding lung ... without associated pulmonary ... #Clinical #Diagnosis ... #Comparison #RadiologyAssistant
On the left a typical case of panlobular emphysema.
There is uniform destruction of the underlying architecture
On the left a typical ... the secondary pulmonary ... Pulmonary vessels ... #Clinical #Radiology ... PanlobularEmphysema #RadiologyAssistant
Honeycombing is defined by the presence of small cystic spaces with irregularly thickened walls composed of
and subpleural lung ... from paraseptal emphysema ... usually occur in a ... #Honeycombing #Differential ... #RadiologyAssistant
Incidental Finding of Oleothorax - A chest radiograph showed a dense opacity in the upper area
area of the left lung ... The differential ... old calcified empyema ... treatment for pulmonary ... #Clinical #PCC #
When a rib fracture heals, the callus formation may create a mass-like appearance (blue arrow).
Sometimes a
necessary to differentiate ... from a lung mass ... Notice the large lung ... #Clinical #Radiology ... #Pseudotumor #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
chronic HP (right) Differential ... centrilobular emphysema ... - UIP has a strong ... throughout the whole lung ... #Clinical #Diagnosis
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
are paraseptal emphysema ... broad differential ... and additional clinical ... #Clinical #Radiology ... RespiratoryBronchiolitis #ILD #RadiologyAssistant
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
like idiopathic pulmonary ... consider drug-related lung ... disease in the differential ... #Clinical #Radiology ... DrugRelated #Fibrosis #RadiologyAssistant