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Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
between cavities and cysts ... the surrounding lung ... Cysts occur without ... Cysts usually contain ... #Cavity #Cyst #
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
, like cyst, cavity ... describe a chest X-ray ... a thick wall Cyst ... #Cyst #Lung #Pulmonary ... #Diagnosis #Radiology
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
cysts (LAM, LIP ... #Diagnosis #Radiology ... Differential #Diagram #Comparison ... TractionBronchiectasis #Cysts ... Emphysema #SignetRing #RadiologyAssistant
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung ... cysts. ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cystic #Comparison
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: - LAM: round cysts ... #Radiology #CTChest ... #Cystic #Cysts ... #Differential #Comparison ... #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 ... leading to pulmonary cyst ... #Clinical #Radiology ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... When the cysts have ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Honeycombing is defined by the presence of small cystic spaces with irregularly thickened walls composed of
Honeycomb cysts ... and subpleural lung ... Subpleural honeycomb cysts ... which subpleural cysts ... #Diagnosis #Radiology
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
before the typical cysts ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #Differential #Comparison ... #Table #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
cyst in the upper ... is a possible diagnosis ... leading to pulmonary cyst ... #Clinical #Radiology ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant