10 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... child-bearing age ... Diagnosis #Radiology #CTChest ... #Cystic #Cysts ... #Differential #Comparison
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... child-bearing age ... bizarre shaped cysts ... Radiology #HRCT #CTChest ... #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
(LAM): regular cysts ... child-bearing age ... Radiology #HRCT #CTChest ... LowAttenuation #Cystic ... #Pattern #Comparison
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... Radiology #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison ... TractionBronchiectasis #Cysts
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
Asthma vs COPD Presentation ... and Diagnosis Asthma ... Epidemiology: Age ... Epidemiology: Age ... #COPD #comparison
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
In the differential ... To differentiate ... them from cysts ... Diagnosis #Radiology #CTChest ... Emphysema #Comparison
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
before the typical cysts ... Radiology #Pulmonary #CTChest ... NodularPattern #Differential ... #Comparison #Table
Chest Pain Diagnosis and Management Algorithm
STEMI:
 - Hx: Pressure like CP, Radiation to arm/jaw, CAD risk
Chest Pain Diagnosis ... blunt trauma, caustic ... Dyspnea, H/O COPD, asthma ... Management #Algorithm #differential
Tree-in-bud almost always indicates the presence of:
Endobronchial spread of infection (TB, MAC, any bacterial bronchopneumonia)
Airway disease
with infection (cystic ... aspergillosis, asthma ... Radiology #Pulmonary #CTChest ... #TreeInBud #Differential
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
Non-Hodgkin's Lymphoma - Comparison ... underarms, or chest ... Increases with age ... involvement Differential ... #NonHodgkins #comparison