22 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... (LAM, LIP, Langerhans ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Lymphangiomyomatosis (LAM ... ): uniform cysts ... bizarre shaped cysts ... Radiology #HRCT #CTChest ... #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
multiple thick walled cysts ... Lymphangiomyomatosis (LAM ... ): regular cysts ... Radiology #HRCT #CTChest ... #Comparison #Table
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... low attenuation (table ... When the cysts have ... seen and in many cases ... #Differential #
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Cystic LCH: - LAM ... : round cysts, evenly ... #Radiology #CTChest ... #Table #RadiologyAssistant
Algorithm for Diagnosis of Diffuse Cystic Lung Disease (DCLD)
Round, smooth cysts with normal lung parenchyma in
Algorithm for Diagnosis ... distribution - LAM ... pattern not consistent ... pulmonary #Algorithm #Diagnosis ... #differential
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
since in many cases ... we describe a chest ... #CXR #Lucency #Differential ... #Table #CavitaryLesion ... Lung #Pulmonary #Diagnosis
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
before the typical cysts ... #Clinical #Diagnosis ... Radiology #Pulmonary #CTChest ... NodularPattern #Differential ... #Comparison #Table
Mediastinal Mass - Differential Diagnosis Framework

Anterior Mediastinal Mass - 5T’s
 • Thymic neoplasm
 • Teratoma (or
Mediastinal Mass - Differential ... Diagnosis Framework ... of breath • Chest ... Mediastinal #Mass #Differential ... #Diagnosis #causes
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Diagnosis Framework ... Antitripsyn Def • Cysts ... #CT #Patterns # ... Differential #Diagnosis