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Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
and cardiogenic pulmonary ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #ChestCT #Differential ... #Table #Distribution
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
- Aspiration - Pulmonary ... edema #Diagnosis #Radiology ... #Pulmonary #HRCT ... #ChestCT #Differential ... #Table #Distribution
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... low attenuation (table ... On a Chest X-Ray ... #Diagnosis #Radiology ... #Pulmonary #CXR
Appearance of Liver Lesions on Various Imaging Modalities
 • Computed Tomography (CT) - Arterial Phase, Portal
Appearance of Liver ... Computed Tomography (CT ... #MRI #POCUS #radiology ... #differential # ... diagnosis #comparison #table
Appearance of Liver Lesions on Computed Tomography (CT) - Arterial Phase, Portal Venous Phase and Delayed
Appearance of Liver ... Computed Tomography (CT ... hemangioma, Focal nodular ... #radiology #differential ... diagnosis #comparison #table
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Low Attenuation Nodular ... #CT #Patterns # ... #pulmonary #radiology
Highlighted Conditions With Arteritis or Periarteritis of the Coronaries
Takayasu's arteritis:
 - Onset < 40 yrs
 -
sinusitis - pulmonary ... Ulceration GI tract - Ocular ... pancreatitis Erdheim-Chester ... #Diagnosis #Cardiology ... #Table
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
diagnosis (Table ... Kerley B lines on chest ... Nodular or irregular ... #Diagnosis #Radiology ... #Pulmonary #HRCT
Sarcoidosis - Diagnosis and Management Summary
Epidemiology
1) High incidence in Scandinavian countries (11-24 cases per 100,000 individuals
Pulmonary: dyspnea ... , cough, chest pain ... nodules; anterior/posterior ... MSK, heart (2-5% ... ), liver (pain/abnormal
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
infections • Nodular ... (elevations of liver ... • Dyspnea, • Chest ... Imaging, high res CT ... NTM #Infections #differential