25 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 ... central dot. - LIP #Clinical ... #Cysts #Differential ... #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... LCH: multiple round ... bizarre shaped cysts ... #Clinical #Radiology ... #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
histiocytosis (LCH ... multiple thick walled cysts ... (LAM): regular cysts ... #Clinical #Radiology ... #RadiologyAssistant
In a later stage the nodules start to cavitate and become cysts.
These cysts start as round
In a later stage ... cavitate and become cysts ... These cysts start ... bizarre shaped cysts ... #Clinical #Radiology
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
Cysts occur without ... Cysts usually contain ... patients with end-stage ... #Clinical #Diagnosis ... #Cavity #Cyst #
HRCT findings in Langerhans cell histiocytosis:
Early stage:
- Small irregular or stellate nodules in centrilobular location.
Late stage
airspaces Cysts ... There are no cysts ... #Clinical #Radiology ... #CTChest #LCH # ... Histiocytosis #RadiologyAssistant
On the left another case of Langerhans' cell histiocytosis.
It started as small noduli, which progressed over
the left another case ... bizarre shaped cysts ... #Clinical #Radiology ... #CTChest #LCH # ... #RadiologyAssistant
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
early nodular stage ... before the typical cysts ... #Clinical #Radiology ... Pattern #Comparison #Table ... #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
low attenuation (table ... When the cysts have ... seen and in many cases ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
histiocytosis (LCH ... LCH is called a ... In many of such cases ... #Clinical #Radiology ... #RadiologyAssistant