8 results
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
/AIDS Patients ... disease, Pulmonary ... alveolar proteinosis ... Actinomyces spp., NHL; Lung ... #diagnosis #chestCT
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Effusion ... Chest Wall Abnormalities ... AlveoliPneumonia ... • ARDS • COPD ... #Algorithm #Causes
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
: Atelectasis, ARDS ... , Pneumonia and ... • Diffusion Defect ... UnremarkableLab #AA ... #differential #diagnosis
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... • Most common cause ... Lung abscess ... Abscess Diagnosis ... #Abscess #pulmonary
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
• Interstitial lung ... diseasePulmonary ... Malformation • Severe Pneumonia ... Abnormalities • Chest ... #Algorithm #Causes
Causes of Pleural Effusion - Differential Diagnosis Algorithm
Transudate - Hydrostatic
 • Congestive heart failure
 • Constrictive
Diagnosis Algorithm ... Pneumonectomy • Trapped lung ... Infectious: • Pneumonia ... • Subphrenic abscess ... #Pulmonary #Diagnosis
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Framework Disease ... phagocytic function of alveolar ... , pleural effusion ... Infections #HIV #AIDS ... #pulmonary #differential
Amiodarone Induced Lung Toxicity Summary

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

How?  Possible
, ARDS, DAH, solitary ... exudative pleural effusions ... Pleuritic chest ... macrophages in alveolar ... Exclude other causes