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Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... Sarcoidosis: nodules ... before the typical cysts ... #Pattern #Comparison ... #Table #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
diseases with a nodular ... centrilobular nodules ... before the typical cysts ... #Differential #Comparison ... #Table #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... - Emphysema - Lung ... cysts (LAM, LIP ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung ... cysts. ... CTChest #Cystic #Comparison ... Histiocytosis #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Nodular LCH: - Sarcoidosis ... : - LAM: round cysts ... CTChest #Cystic #Cysts ... #Differential #Comparison ... #Table #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the surrounding lung ... Cysts occur without ... Cysts usually contain ... #Emphysema #Comparison ... #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
distribution of nodules ... diagnosis in the nodular ... structures of the lung ... Perilymphatic #Comparison ... #Diagram #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... patterns: reticular, nodular ... is interstitial lung ... When the cysts have ... #Differential #RadiologyAssistant
On the left another case of Langerhans' cell histiocytosis.
It started as small noduli, which progressed over
started as small noduli ... to cavitating nodules ... bizarre shaped cysts ... replace normal lung ... Histiocytosis #Cystic #RadiologyAssistant