8 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... on HRCT Most of ... low attenuation (table ... Diagnosis #Radiology #Pulmonary ... #Pattern #Differential
Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
Figure 3 HRCT-LUS ... due to alveolar syndrome ... multiple long, vertical ... artifact); (G) UIP pattern ... #Correlation #Table
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Hemoptysis, Peripheral edema ... symptomatology Differential ... , anti-CCP • CXR ... high resolution chest ... #differential #
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... Cardiogenic pulmonary ... finding in HRCT ... #CTChest #Reticular ... #Table #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... in ground glass pattern ... Diagnosis #Radiology #Pulmonary ... #CTChest #GGO # ... #GroundGlass #Differential
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... diagnosis (Table ... in interstitial pulmonary ... edema (Kerley B ... #HRCT #CTChest
Differentiation Syndrome in APML
Epidemiology:
 • Incidence: common in APL (2-48% depending on the study)
 • Triggers:
Differentiation Syndrome ... myalgias, HoTN, edema ... common • Imaging: CXR ... - pulmonary opacities ... initiation • Differential
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
• Mounier-Kuhn syndrome ... dyskinesia • Young syndrome ... Physical stigmata of cor ... Diagnosis: • HRCT ... #differential #