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Radiographic Features of Pulmonary Diseases
 - Pneumonia
 - Atelectasis
 - Emphysema
 - Pneumothorax
 - Effusion
 -
Atelectasis - Emphysema ... Reticular - Emphysema ... Pulmonary #Diseases #Radiology ... #Differential #Diagnosis
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
These include: - Emphysema ... #Diagnosis #Radiology ... TractionBronchiectasis #Cysts #Emphysema
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
(centrilobular emphysema ... Pulmonary edema #Diagnosis ... #Radiology #Pulmonary
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Centrilobular emphysema ... LIP #Clinical #Diagnosis ... #Radiology #CTChest
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
pneumatocele, emphysema ... with a thin wall Emphysema ... Lung #Pulmonary #Diagnosis ... #Radiology
Split Pleura Sign on Chest CT
 • Contrast enhancement of the parietal and visceral pleura, separated
effusion • DDx: Empyema ... Lung #Pulmonary #diagnosis ... #radiology #clinical
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the differential diagnosis ... associated pulmonary emphysema ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cavity #Cyst #Emphysema
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
challenging differential diagnosis ... centrilobular emphysema ... Emphysema however ... diseases and also in emphysema ... #Clinical #Radiology
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Differential diagnosis ... Centrilobular emphysema ... #Clinical #Radiology
Lung abnormalities mostly present as areas of increased density, which can be divided into the following
are seen as in emphysema ... #Diagnosis #Pathophys ... #Radiology #CXR