31 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 ... Diagnosis #Radiology #CTChest ... Differential #Comparison #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
LCH: multiple round ... Radiology #HRCT #CTChest ... Pattern #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
histiocytosis (LCH ... Radiology #HRCT #CTChest ... Pattern #Comparison #Table
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
The CXR is of a ... histiocytosis (LCH ... LCH is called a ... #CTChest #Cystic ... LangerhansCellHistiocytosis #LCH
Estimated Medical Radiation Doses for 5 Year-Old Child

3-view ankle	0.0015 mSv	1/14th CXRs
2-view chest	0.02 mSv	1 CXRs
Anteroposterior and lateral
0.0015 mSv 1/14th CXRs ... 2-view chest 0.02 ... Chest CT 3 mSv ... 150 CXRs Abdomen ... Nuclear #Comparison #Table
In a later stage the nodules start to cavitate and become cysts.
These cysts start as round
shaped cysts of LCH ... patients with LCH ... Clinical #Radiology #CTChest ... #LCH #LangerhansCellHistiocytosis
RIMA dissection during cardiac catheterization

RIMA explosion - never inject if the waveform is clearly dampened. Surprisingly
the LIMA/RIMA ostia ... Fluoroscopy #Clinical #LHC
Diagnostic algorithm for a child or adolescent with suspected pulmonary hypertension. CHD, congenital heart disease; CPET,
hypertension; CXR ... , chest X-ray; HPAH ... hypertension; PCH
Intern Pocket Cards - Inpatient Anti-Emetics Guide
Serotonin antagonists:
 • Ondansetron (Zofran), Granisetron (Kytril, Sancuso) - Headache,
paradoxical excitation ACh ... DA/Histamine/ACh ... disorientation, seizure • THC ... #pharmacology #table
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
low attenuation (table ... On a Chest X-Ray ... On a CXR the most ... detected on a chest ... Radiology #Pulmonary #CXR