18 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Nodular LCH: - Sarcoidosis ... Cystic LCH: - LAM ... : round cysts, evenly ... central dot. - LIP #Clinical ... #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 ... #Clinical #Radiology ... #HRCT #CTChest ... #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
histiocytosis (LCH ... (LAM): regular cysts ... #Clinical #Radiology ... #HRCT #CTChest ... #Pattern #Comparison
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
histiocytosis (LCH ... LCH is called a ... of such cases a HRCT ... #Clinical #Radiology ... LangerhansCellHistiocytosis #LCH
HRCT findings in Langerhans cell histiocytosis:
Early stage:
- Small irregular or stellate nodules in centrilobular location.
Late stage
HRCT findings in ... 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 ... Nodular #Pattern #Comparison
In a later stage the nodules start to cavitate and become cysts.
These cysts start as round
These cysts start ... of LCH. ... patients with LCH ... #Clinical #Radiology ... #CTChest #LCH #
On the left another case of Langerhans' cell histiocytosis.
It started as small noduli, which progressed over
bizarre shaped cysts ... #Clinical #Radiology ... #CTChest #LCH # ... Histiocytosis #Cystic
RIMA dissection during cardiac catheterization

RIMA explosion - never inject if the waveform is clearly dampened. Surprisingly
the LIMA/RIMA ostia ... #Fluoroscopy #Clinical ... #LHC #CathLab
Sellar / Pituitary Mass - Differential Diagnosis Algorithm
Adenoma - Primary Anterior Pituitary
 - Secreting
Differential Diagnosis Algorithm ... • TSH • LH ... Meningioma • Cyst ... Differential #Diagnosis #Algorithm