13 results
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... - Atypical bacterial ... #CT #Patterns #Pulmonary ... ComputedTomography #Differential ... #Diagnosis #Chest
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Infections in HIV - Differential ... Diagnosis Framework ... tuberculosis, Bacterial ... Infections #HIV #AIDS #pulmonary ... #differential #
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... Diagnosis Algorithm ... Arterial Hypertension ... Malformation • Severe Pneumonia ... Abnormalities • Chest
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Simplified A-a (assumes Room ... Weakness, Loss of Chest ... Atelectasis, ARDS, Pneumonia ... #hypoxemia #differential ... #diagnosis
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern - Chest ... Diagnosis of Miliary ... - Select Bacteria ... rarely typical pneumonia ... #diagnosis #pulmonary
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
pleura reflection) Pneumonia ... severe cases - Dynamic ... submassive PE) POCUS ... #differential # ... diagnosis #signs
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
in HIV-AIDS Bacterial ... /- High res CT chest ... and sputum cx (Bacterial ... HIVAIDS #workup #diagnosis ... #evaluation #differential
Broncholithiasis - Differential Diagnosis Framework

 • Also known as: Lung stones, pulmoliths, pneumoliths, bronchial calculi
 •
Broncholithiasis - Differential ... • Recurrent pneumonia ... into the aorta or pulmonary ... Broncholithiasis #Differential ... #Diagnosis #pulmonary
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Pathogens: • Aerobic Bacteria ... Bacteria: - Bacteroides ... Lung Abscess Differential ... Lung #Abscess #pulmonary ... #differential #
Soil Related Infections - Differential Diagnosis Framework

Mechanism Of Infection:
 • Wound
 • GI: Ingestion, MUD, Contaminated
Related Infections - Differential ... Diagnosis Framework ... influenced by plant roots ... , is a hot spot ... possible fever, chest