9 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... bronchiectasis: ... walls, central dot ... LIP #Clinical #Diagnosis ... #Radiology #CTChest
Deep Vein Thrombosis Ultrasound Pocket Card
Deep Vein Thrombosis Scanning Sites:
 • Common Femoral Vein 
 •
Thrombophlebitis • Baker’s Cyst ... Lymph Node • Pseudoaneurysms ... DeepVein #Thrombosis #DVT ... #pocus #diagnosis ... #Ultrasound #radiology
Transducer location to evaluate the femoral vein and normal ultrasound images showing common femoral artery (A)
to evaluate the femoral ... vein and normal ultrasound ... #Clinical #Diagnosis ... #EM #Radiology ... #Vasc #POCUS #DVT
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... histiocytosis) - Bronchiectasis ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... TractionBronchiectasis #Cysts
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
- Differential Diagnosis ... Antitripsyn Def • Cysts ... Sarcoidosis • Bronchiectasis ... #Differential #Diagnosis ... #pulmonary #radiology
Tree-in-bud almost always indicates the presence of:
Endobronchial spread of infection (TB, MAC, any bacterial bronchopneumonia)
Airway disease
with infection (cystic ... fibrosis, bronchiectasis ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Differential diagnosis ... 90% are smokers, cysts ... artery seen as dot ... #Clinical #Radiology ... #CTChest #Lymphangiomyomatosis
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
attenuation (emphysema, cystic ... lymphadenopathy, traction bronchiectasis ... ) #Diagnosis #Radiology ... Pulmonary #HRCT #CTChest
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
caused by multiple cysts ... challenging differential diagnosis ... identify the central dot ... #Clinical #Radiology ... Histiocytosis #Cystic