22 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 ... #CTChest #Cystic ... #Cysts #Differential ... #Comparison #Table
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 ... #HRCT #CTChest ... Pattern #Comparison #Table
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 ... #HRCT #CTChest ... Pattern #Comparison #Table
In a later stage the nodules start to cavitate and become cysts.
These cysts start as round
cavitate and become cysts ... These cysts start ... bizarre shaped cysts ... #Clinical #Radiology ... #CTChest #LCH #
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 # ... Histiocytosis #Cystic
HRCT findings in Langerhans cell histiocytosis:
Early stage:
- Small irregular or stellate nodules in centrilobular location.
Late stage
commonly seen) - Cystic ... airspaces Cysts ... There are no cysts ... #Clinical #Radiology ... #CTChest #LCH #
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
before the typical cysts ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
low attenuation (table ... The cystic pattern ... When the cysts have ... seen and in many cases ... #Diagnosis #Radiology
Langerhans cell histiocytosis is an uncommon disease characterised by multiple cysts in patients with nicotine abuse.
In
characterised by multiple cysts ... cavitate and become cysts ... #Clinical #Radiology ... #CTChest #LangerhansCellHistiocytosis ... #LCH #Nodular #
Key findings in Lymphangiomyomatosis:
Numerous thin-walled cysts, surrounded by normal parenchyma.
Cysts range from 2mm to 5cm in
Numerous thin-walled cysts ... Cysts range from ... Cysts are distributed ... thickness of the cysts ... spread thin walled cysts