12 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
of Langerhans cell ... Cystic LCH: - LAM ... #CTChest #Cystic ... #Cysts #Differential ... #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Langerhans cell ... histiocytosis (LCH ... #Clinical #Radiology ... #HRCT #CTChest ... #Pattern #Comparison
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
or a cystic pattern ... cell histiocytosis ... #Clinical #Radiology ... #CXR #CTChest # ... Cystic #Interstitial
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
The cystic pattern ... walls like in Langerhans ... cell histiocytosis ... #Diagnosis #Radiology ... #Pattern #Differential
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
(LAM, LIP, Langerhans ... cell histiocytosis ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Diagram #Comparison
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Langerhans cell ... before the typical cysts ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
cell histiocytosis ... is a reticular patern ... #Clinical #Radiology ... #CXR #CTChest # ... LCH #LangerhansCellHistiocytosis
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Langerhans cell ... before the typical cysts ... #Pulmonary #CTChest ... NodularPattern #Differential ... #Comparison #Table
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Lymphangitic Carcinoma, Interstitial ... : Congenital, Langerhans ... #CT #Patterns # ... #pulmonary #radiology
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Differential diagnosis ... Lymphangiomyomatosis: Langerhans ... cell histiocytosis ... Lymphoid interstitial ... #Clinical #Radiology