10 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Left Shunt - Anatomic ... Lung Disease ... UnremarkableLab #AA ... #Gradient #alveolar ... #differential #diagnosis
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... lung disease comes ... lung disease and ... #Diagnosis #Radiology ... #Pulmonary #CXR
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
Thickening of the lung ... lung disease, it ... pulmonary edema ... or lymphoma and alveolar ... #CTChest #Reticular
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
Ulcers, Livedo reticularis ... pleural effusion on CXR ... tends to cause interstitial ... lung disease/pulmonary ... signs #symptoms #diagnosis
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
histologic pattern of pulmonary ... On a chest X-ray ... to confirm the diagnosis ... at the lung bases ... #Interstitial #
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
Amiodarone Induced Lung ... Direct cytotoxic lung ... macrophages in alveolar ... glass opacities • Reticular ... ground glass or reticular
Based on the images alone, it is usually not possible to determine the cause of the
filling of the alveoli ... this is nodular interstitial ... lung disease, that ... #Clinical #Diagnosis ... #Radiology #CXR
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
- Differential Diagnosis ... blood cells in the lung ... the right middle lobe ... interstitium and ... alveoli thus increases
Bronchoalveolar Lavage (BAL) on Bronchoscopy 
BRONCHOALVEOLAR LAVAGE is a technique used in bronchoscopy for several diagnostic
bronchoscopy for several diagnostic ... concern (guided by chest ... — Infection — Diagnosing ... Alveolar Proteinosis ... often not helpful) Interstitial
Congestive heart failure (CHF) is the result of insufficient output because of cardiac failure, high resistance
In the lungs LV ... fluid into the interstitium ... finally into the alveoli ... #Diagnosis #Radiology ... #CHF #CXR #Features