10 results
ARDS/VALI progression over the course of 1 week 
 (a) Day 1 - No pathological findings.
ARDS/VALI progression ... consolidations ... Progressing to diffuse alveolar ... involvement, with “white lung ... CXR #ChestXRay #ARDS
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
diseases in HIV/AIDS ... edema; ARDS, Metastatic ... alveolar proteinosis ... Actinomyces spp., NHL; Lung ... Sarcoma • Focal Consolidation
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
: Atelectasis, ARDS ... Embolism, Obstructive Lung ... , Interstitial Lung ... #AA #Gradient #alveolar ... #Hypoxia #hypoxemia
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Distress Syndrome – ARDS ... congestion with hypoxemia ... sepsis-associated ARDS ... days after dx of ARDS ... RespiratoryDistress #Syndrome #ARDS
Notice that even within each lobe there is a gravity dependent difference in density.
This is only
seen when the consolidations ... capillary leak like in ARDS ... #CTChest #CHF #Alveolar ... #Pulmonary #Edema ... Gravity #Dependent #RadiologyAssistant
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
rare idiopathic lung ... characterized by diffuse alveolar ... distress syndrome (ARDS ... diffuse or patchy consolidation ... AcuteInterstitialPneumonia #ILD #RadiologyAssistant
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... dyspnea • Lobar consolidation ... phagocytic function of alveolar ... Infections #HIV #AIDS ... #pulmonary #differential
Type L:
 - Low elastance. The nearly normal compliance indicates that the amount of gas in
and by loss of hypoxic ... this stage, the pulmonary ... magnitude of severe ARDS ... , as in severe ARDS ... Variations #Diagnosis #Management
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
Noncardiogenic Pulmonary ... blood cells in the lung ... interstitium and alveoli ... respiratory failure or ARDS ... dyspnea, tachypnea, hypoxemia
Amiodarone Induced Lung Toxicity Summary

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

How?  Possible
Amiodarone Induced Lung ... Direct cytotoxic lung ... organizing pneumonia, ARDS ... macrophages in alveolar ... #diagnosis #management