9 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Cystic LCH: - LAM ... : round cysts, evenly ... : 'signet ring sign ... #Radiology #CTChest ... #Cystic #Cysts
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
cysts (LAM, LIP ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... TractionBronchiectasis #Cysts ... Emphysema #SignetRing #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
cyst in the upper ... LAM is a rare lung ... cyst formation ... #Clinical #Radiology ... #LAM #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
cyst in the upper ... LAM is a rare lung ... cyst formation ... #Clinical #Radiology ... #LAM #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
: reticular, nodular ... The cystic pattern ... When the cysts have ... #Diagnosis #Radiology ... #Pulmonary #CXR
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the surrounding lung ... Cysts occur without ... associated pulmonary ... #Radiology #CTChest ... #Cavity #Cyst #
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
before the typical cysts ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... Comparison #Table #RadiologyAssistant
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Diagnosis Framework ... Low Attenuation Nodular ... Antitripsyn Def • Cysts ... Lymphocytic Int PNA, Lymphangioleiomyomatosis ... #pulmonary #radiology
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... : reticular nodular ... #Radiology #Pulmonary ... #HRCT #CTChest ... Interpretation #Algorithm