11 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Nodular LCH: - Sarcoidosis ... Cystic LCH: - LAM ... #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... (LAM): uniform cysts ... LCH: multiple round ... #Pattern #Comparison ... #Table #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... histiocytosis (LCH ... (LAM): regular cysts ... #Pattern #Comparison ... #Table #RadiologyAssistant
In a later stage the nodules start to cavitate and become cysts.
These cysts start as round
In a later stage ... of LCH. ... patients with LCH ... Radiology #CTChest #LCH ... Histiocytosis #Cavitary #RadiologyAssistant
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
or a cystic pattern ... histiocytosis (LCH ... LCH is called a ... LangerhansCellHistiocytosis #LCH ... #RadiologyAssistant
On the left radiological pathological correlation of Langerhans cell histiocytosis in respectively nodular stage and early
and early and late ... cystic stage. ... CTChest #Microscopy #LCH ... LangerhansCellHistiocytosis #Late ... Histiocytosis #Cavitary #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... Emphysema - Lung cysts ... #Diagnosis #Radiology ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
HRCT findings in Langerhans cell histiocytosis:
Early stage:
- Small irregular or stellate nodules in centrilobular location.
Late stage
Late stage (more ... airspaces Cysts ... There are no cysts ... Radiology #CTChest #LCH ... Histiocytosis #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
is a reticular patern ... This is late stage ... challenging differential diagnosis ... #CXR #CTChest #LCH ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... before the typical cysts ... #Clinical #Diagnosis ... #Differential #Comparison ... #Table #RadiologyAssistant