10 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... lung disease comes ... On a Chest X-Ray ... Diagnosis #Radiology #Pulmonary ... #Pattern #Differential
Radiographic Features of Pulmonary Diseases
 - Pneumonia
 - Atelectasis
 - Emphysema
 - Pneumothorax
 - Effusion
 -
Metastases - Interstitial ... Nodular - Acute Interstitial ... Diseases #Radiology #Patterns ... #Lung #CXR #XRay ... #ChestCT #Differential
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
diseases in HIV/AIDS ... edema; ARDS, Metastatic ... Actinomyces spp., NHL; Lung ... #diseases #differential ... #diagnosis #chestCT
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... : Atelectasis, ARDS ... Lung Disease ... Hypoxia #hypoxemia #differential
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
of pulmonary fibrosis ... On a chest X-ray ... A HRCT is needed ... at the lung bases ... UIP #Reticular #Interstitial
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
Thickening of the lung ... cells results in a pattern ... lung disease, it ... Kerley B lines on chest ... #HRCT #CTChest
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
in HIV-AIDS Bacterial ... failure, COPD, Lung ... Lymphocytic or lymphoid interstitial ... /- High res CT chest ... diagnosis #evaluation #differential
Amiodarone Induced Lung Toxicity Summary

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

How?  Possible
Amiodarone Induced Lung ... organizing pneumonia, ARDS ... Pleuritic chest ... reticular opacities on chest ... confirmatory findings on HRCT
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... • Pleuritic chest ... fever, rales, interstitial ... Infections #HIV #AIDS ... #pulmonary #differential
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
Edema (NCPE) - Differential ... blood cells in the lung ... interstitium and ... respiratory failure or ARDS ... infiltrates on chest