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CT Lung Signs in Pulmonary Diseases - One Page Summary of Pulmonary Signs
 - Air Crescent
CT Lung Signs in ... #Signs #Pulmonary ... #Diseases #diagnosis ... #differential # ... radiology
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
cysts (LAM, LIP ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... Emphysema #SignetRing #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
diagnosis there ... the surrounding lung ... associated pulmonary ... #Radiology #CTChest ... Emphysema #Comparison #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... : 'signet ring sign ... #Radiology #CTChest ... #Cystic #Cysts ... #Table #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
cyst in the upper ... is a possible diagnosis ... airways leading to pulmonary ... #Clinical #Radiology ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... edema #Diagnosis ... #Radiology #Pulmonary ... HRCT #ChestCT #Differential ... #Upper #Lower #RadiologyAssistant
Hilar and mediastinal lymphadenopathy
In sarcoidosis the common pattern is right paratracheal and bilateral hilar adenopathy ('1-2-3-sign').
In
adenopathy ('1-2-3-sign ... In lung carcinoma ... #Diagnosis #Radiology ... #Pulmonary #Mediastinal ... #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... When the cysts have ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #RadiologyAssistant
Water Lily Sign (Camalote Sign) on Chest CT
 • Hydatid cyst in the lung with a
Water Lily Sign ... CT • Hydatid cyst ... • DDx: Hydatid cyst ... #Pulmonary #diagnosis ... #radiology #clinical
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
lucencies within the lung ... , like cyst, cavity ... #CXR #Lucency #Differential ... #Lung #Pulmonary ... #Diagnosis #Radiology