19 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Cystic LCH: - LAM ... Clinical #Diagnosis #Radiology ... #Cysts #Differential ... #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Lymphangiomyomatosis (LAM ... ): uniform cysts ... #Clinical #Radiology ... Pattern #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Lymphangiomyomatosis (LAM ... ): regular cysts ... #Clinical #Radiology ... Pattern #Comparison #Table ... #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
There is a lung cyst ... leading to pulmonary cyst ... #Clinical #Radiology ... #CXR #Pneumothorax ... #RadiologyAssistant
Lobar consolidation
The most common presentation of consolidation is lobar or segmental.
The most common diagnosis is lobar
The table lists ... the differential ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... (LAM, LIP, Langerhans ... #Diagnosis #Radiology ... LowAttenuation #Differential ... Emphysema #SignetRing #RadiologyAssistant
Hilar enlargement
The table summarizes the causes of hilar enlargement.
Normal hili are:
- Normal in position - left
enlargement The table ... vessels #Diagnosis #Radiology ... #CXR #HilarEnlargement ... #Enlargement #Differential ... Unilateral #Bilateral #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... low attenuation (table ... The cystic pattern ... #Diagnosis #Radiology ... #RadiologyAssistant
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Differential diagnosis ... 90% are smokers, cysts ... typical case of LAM ... #Clinical #Radiology ... #Cystic #RadiologyAssistant
Pleural opacities
The table lists the most common causes of pleural opacities #Diagnosis #Radiology #Pulmonary #CXR #Pleural
opacities The table ... opacities #Diagnosis #Radiology ... #Pulmonary #CXR ... Opacity #Plaques #Differential ... #Causes #RadiologyAssistant