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On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung cysts ... Lymphangiomyomatosis, LIP ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic ... Comparison #LAM #LIP
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Cystic LCH: - LAM ... : round cysts, evenly ... central dot. - LIP ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... (LAM, LIP, Langerhans ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... TractionBronchiectasis #Cysts
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
you think of the causes ... fibrosis as in UIP ... the alveoli and cause ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
The cystic pattern ... When the cysts have ... seen and in many cases ... UIP can be suspected ... #Diagnosis #Radiology
Mucoid impaction
Mucus plugs or mucoid impaction can mimick the appearance of lung nodules or a mass.
Sometimes
bronchiectasis, as in cystic ... bronchial obstruction caused ... In this case there ... #Clinical #Radiology ... #CXR #CTChest #
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
can heal and end up ... Cysts occur without ... Clinical #Diagnosis #Radiology ... #CTChest #Cavity ... #Cyst #Emphysema
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... findings of NSIP, UIP ... , OP and LIP have ... #Diagnosis #Radiology ... #Pulmonary #CTChest
On the left a chest film of a patient with UIP due to IPF.
The findings on
a patient with UIP ... reticular densities caused ... thick walls of the cysts ... #Clinical #Radiology ... #CXR #CTChest #
Kussmaul's sign in Constrictive Pericarditis 

A 50-year-old woman with a remote history of mediastinal lymphoma (age
blue marks on her chest ... (photo). ... Causes = RV failure ... pericarditis (this case ... Pericarditis #Cardiology