20 results
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
pneumonia (COP), chronic ... pneumonia and UIP ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Table
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
bronchiolitis (RB-ILD ... is seen in: - UIP ... Pulmonary edema #Diagnosis ... #HRCT #ChestCT ... #Differential #Table
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Hypersensitivity pneumonitis: ill ... #Clinical #Radiology ... #HRCT #CTChest ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
Chronic eosinophilic ... Chronic eosinophilic ... #HRCT #CTChest ... HighAttenuation #Pattern #Comparison ... #Table #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
) Differential diagnosis ... similar HRCT findings ... #Radiology #CTChest ... #UIP #Comparison ... #RadiologyAssistant
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
the left three different ... #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 ... on the basis of HRCT ... #Diagnosis #Radiology ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
listed in the table ... morphologic findings on HRCT ... #Diagnosis #Radiology ... IdiopathicInterstitialPneumonia #ILD ... #Findings #RadiologyAssistant
More than 100 entities manifest as diffuse lung disease.
Fortunately only about 10 of these account for
you find three different ... some of them the old ... #Diagnosis #Radiology ... SHITFACED #Mnemonic #HRCT ... #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