15 results
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Lymphangiomyomatosis (LAM ... effusion; sometimes pneumothorax ... Honeycombing 4. ... #Clinical #Radiology ... #HRCT #CTChest
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 ... Emphysema #SignetRing #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Honeycombing. 4. ... Lymphangiomyomatosis (LAM ... #Clinical #Radiology ... #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
attached to the chest ... There is a lung cyst ... airways leading to pulmonary ... #Clinical #Radiology ... #RadiologyAssistant
Chest Pain - Differential Diagnosis Framework

Cardiovascular Causes of Chest Pain:
 • Myocardium:
	- Myocarditis
	- CAD/ACS
	- Valvulopathy
	- Myopericarditis
- Tamponade Pulmonary ... Alveoli: - CHF - Pneumonia ... - Effusion - Pneumothorax ... #Pain #ChestPain ... Diagnosis #Causes #Cardiology
Chest Pain - Differential Diagnosis Algorithm
Cardiovascular Causes:
 - Outflow Obstruction
     • Aortic
Diagnosis Algorithm ... Pleura • Pneumothorax ... Parenchymal • Pneumonia ... Radiculopathy #ChestPain ... #Noncardiac #Cardiology
Honeycombing represents the second reticular pattern recognizable on HRCT.
Because of the cystic appearance, honeycombing is also
Because of the cystic ... usual interstitial pneumonia ... #Clinical #Radiology ... #CTChest #Honeycombing ... UsualInterstitialPneumonia #RadiologyAssistant
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Silicosis • Honeycombing ... Hypersensitivity Pneumonia ... Antitripsyn Def • Cysts ... : Idiopathic Pulmonary ... #radiology
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
attached to the chest ... There is a lung cyst ... airways leading to pulmonary ... #Clinical #Radiology ... #RadiologyAssistant
Key findings in Lymphangiomyomatosis:
Numerous thin-walled cysts, surrounded by normal parenchyma.
Cysts range from 2mm to 5cm in
Recurrent pneumothorax ... typical case of LAM ... #Clinical #Radiology ... #CTChest #Lymphangiomyomatosis ... #LAM #Cystic #RadiologyAssistant