24 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... child-bearing age ... Diagnosis #Radiology #CTChest ... #Comparison #Table ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Radiology #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
child-bearing age ... Radiology #HRCT #CTChest ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
child-bearing age ... Radiology #HRCT #CTChest ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
Perilymphatic nodules are ... the overlap in differential ... Pulmonary #HRCT #CTChest ... Perilymphatic #Nodular #Differential ... #RadiologyAssistant
On the left a patient with ground glass pattern in a mosaic distribution.
Some lobules are involved
Some lobules are ... The differential ... Clinical #Radiology #CTChest ... #GGO #MosaicAttenuation ... HypersenstitivityPneumonitis #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Radiology #Pulmonary #CTChest ... NodularPattern #Differential ... #Comparison #Table ... #RadiologyAssistant
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
These are often ... pleural nodules are ... 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 ... honeycomb cysts are ... Diagnosis #Radiology #CTChest ... Cyst #Emphysema #Comparison ... #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... On HRCT there are ... On a Chest X-Ray ... Interstitial #Pattern #Differential ... #RadiologyAssistant