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On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
TB: Tree-in-bud ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... #Differential #Comparison
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 ... #Clinical #Radiology ... #Nodular #Pattern ... #Comparison #Table
Here are the most common examples of these four patterns on a chest x-ray (click image
Interstitial - Reticular ... opacities - Fine Nodular ... interstitial opacities Nodule ... Nodule - Multiple ... #Clinical #Radiology
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... : reticular, nodular ... low attenuation (table ... #Diagnosis #Radiology ... #Pulmonary #CXR
Tree-in-Bud Sign on Chest CT
 • Multiple centrilobular nodules arranged in a linear branching pattern.
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centrilobular nodules ... linear branching pattern ... Sign #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical #tree
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... (Table). ... Nodular or irregular ... #Diagnosis #Radiology ... #CTChest #Reticular
Fleischner Society recommendations for follow-up of nodules
Previous chest radiographs should be reviewed to determine if the
for follow-up of nodules ... with a benign pattern ... mm depends on clinical ... #CTChest #Fleischner ... #Nodules #RadiologyAssistant
Sarcoidosis - Diagnosis and Management Summary
Epidemiology
1) High incidence in Scandinavian countries (11-24 cases per 100,000 individuals
survival is 93-95% Pathophysiology ... renal failure Clinical ... stable or chronic ... Pulmonary: dyspnea ... pernio, papules, nodules