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On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
Lymphangiomyomatosis, LIP ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cystic #Comparison ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Lung cysts (LAM, LIP ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... central dot. - LIP ... #Radiology #CTChest ... #Differential #Comparison ... #Table #RadiologyAssistant
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Blood cultures • CXR ... early disease) • CXR ... hemorrhage • Treatment ... several months of treatment
Here are the most common examples of these four patterns on a chest x-ray (click image
patterns on a chest ... consolidation - Multifocal ill-defined ... Masses Atelectasis #Diagnosis ... Clinical #Radiology #CXR ... Consolidation #Patterns #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
can suggest the diagnosis ... two ill-defined ... Clinical #Radiology #CXR ... #CTChest #Septic ... SepticEmboli #Cavity #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
, OP and LIP have ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD ... #Findings #RadiologyAssistant
On the left a chest film of a patient with UIP due to IPF.
The findings on
a patient with UIP ... Clinical #Radiology #CXR ... #CTChest #UIP # ... Pneumonitis #Reticular #ILD ... #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
) Differential diagnosis ... Subacute stage: - RB-ILD ... #Radiology #CTChest ... #UIP #Comparison ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
bronchiolitis: ill ... #Clinical #Diagnosis ... Radiology #Pulmonary #CTChest ... #Differential #Comparison ... #Table #RadiologyAssistant