11 results
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... the nodules are diffuse ... Radiology #Pulmonary #HRCT ... #CTChest #NodularPattern ... MultipleNodules #Nodules #Differential
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Miliary TB: random ... Clinical #Radiology #HRCT ... #CTChest #Nodular ... #Table #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... on HRCT Most of ... On HRCT there are ... low attenuation (table ... #Differential #
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern ... mm) nodules • Diffusely ... process or (rarely) diffuse ... #differential # ... CXR #clinical #CT
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Nodular: • Random ... #CT #Patterns # ... Differential #Diagnosis
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... Miliary TB: random ... Radiology #Pulmonary #CTChest ... NodularPattern #Differential ... #Comparison #Table
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
interpretation of HRCT ... the dominant HR-pattern ... perilymphatic or random ... #CTChest #Interpretation ... #Algorithm #ILD
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Other tests: • CT ... capillaritis leading to diffuse ... hemorrhage (DAH) • Diffuse ... CT ... • IF staining patterns
On the left a patient with ground glass pattern in a mosaic distribution.
Some lobules are involved
with ground glass pattern ... The differential ... are confluent, HRCT ... shows diffuse ground ... Clinical #Radiology #CTChest
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... has a limited differential ... diagnosis (Table ... Radiology #Pulmonary #HRCT ... #CTChest #Reticular