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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
- Emphysema - Lung ... cysts (LAM, LIP ... Diagnosis #Radiology #Pulmonary ... LowAttenuation #Differential ... #Diagram #Comparison
Lung Auscultation and Physical Exam Findings in Selected Lung Disorders

#PhysicalExam #Auscultation #Pulmonary #Percussion #Dullness #Fremitus #BreathSounds
Lung Auscultation ... Findings in Selected Lung ... Disorders #PhysicalExam ... #Auscultation #Pulmonary ... #Transmitted #Comparison
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
lucencies within the lung ... , like cyst, cavity ... visible wall #CXR ... #Lucency #Differential ... #Lung #Pulmonary
Mediastinal Mass - Differential Diagnosis
Anterior Mediastinal Mass:
 • Thymus (Thymoma, carcinoma, hyperplasia, cyst)
 • Lymphoma
 •
Mediastinal Mass - Differential ... , hyperplasia, cyst ... Sarcoma, Metastatic Lung ... Mediastinal #Mass #Differential ... #Diagnosis #pulmonary
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
In the differential ... To differentiate ... the surrounding lung ... associated pulmonary ... #Emphysema #Comparison
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... is interstitial lung ... When the cysts have ... Diagnosis #Radiology #Pulmonary
Radiographic Features of Pulmonary Diseases
 - Pneumonia
 - Atelectasis
 - Emphysema
 - Pneumothorax
 - Effusion
 -
Radiographic Features of Pulmonary ... Emphysema - Pulmonary ... Radiology #Patterns #Lung ... #CXR #XRay #ChestCT ... #Differential #
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
of a cavitating lung ... vascular - pulmonary ... - bronchogenic cyst ... Cavitary #Lesions #Differential ... #Lung #Pulmonary
Causes of Pediatric Wheezing - Differential Diagnosis Algorithm
CXR Abnormal:
 • Pulmonary Sequestration
 • Congenital Adenoid Cystic
Pediatric Wheezing - Differential ... Diagnosis Algorithm CXR ... Abnormal: • Pulmonary ... • Bronchogenic Cyst ... Peds #Pediatrics #Pulmonary
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
There is a lung ... cyst in the upper ... airways leading to pulmonary ... cyst formation ... Clinical #Radiology #CXR