52 results
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... : • 3 syndromes ... • CT: Halo sign ... of a "flu-like syndrome ... Infections #HIV #AIDS #pulmonary
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
CT 1. ... Organizing Pneumonia ... #Pulmonary #ChestCT ... #radiology #CTChest ... #diagnosis
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... myelodysplastic syndrome ... #Lung #Infections ... #Differential #Diagnosis ... #Chest
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Lung Ultrasound ... pleura reflection) Pneumonia ... Respiratory Distress Syndrome ... #differential #diagnosis ... #signs #Lung #POCUS
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
on Lung POCUS ... POCUS lung exam ... sliding: Pulmonary ... NOT definitively diagnose ... #ultrasound
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
Diagnosis is generally ... infiltrate (e.g., CXR, CT ... , ultrasound) - ... pain) and signs ... #Pulmonolary
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... and Management ... for Klebsiella pneumonia ... CT Lung Abscess ... #Abscess #pulmonary
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
responses of the lung ... interstitial pneumonia ... drug-related lung ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... Atelectasis, ARDS, Pneumonia ... , Interstitial Lung ... #differential #diagnosis
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
throughout the lungs ... Differential Diagnosis ... rarely typical pneumonia ... #diagnosis #pulmonary ... CXR #clinical #CT