6 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
on the basis of HRCT ... #Diagnosis #Radiology ... #Differential # ... Diagram #Comparison ... #SignetRing #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
Centrilobular distribution ... structures of the lung ... #Diagnosis #Radiology ... Perilymphatic #Comparison ... #Diagram #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... #Radiology #Pulmonary ... #HRCT #ChestCT ... #Differential #Table ... #Distribution #
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Nodular LCH: - Sarcoidosis ... emphysema: no walls ... #Radiology #CTChest ... #Comparison #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
TB: Tree-in-bud appearance ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #Comparison #Table ... #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
chronic HP (right) Differential ... emphysema. - Alveolar ... show very similar HRCT ... #Radiology #CTChest ... #UIP #Comparison