34 results
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... myelodysplastic syndrome ... #Lung #Infections ... ComputedTomography #Differential ... #Diagnosis #Chest
Causes of Hemoptysis - Differential Diagnosis Algorithm
Massive Hemoptysis (>I00 mL in 24 hours)
 • Malignancy
 •
of Hemoptysis - Differential ... Diagnosis Algorithm ... Bronchitis Diffuse CT ... Infection • Bacterial ... Goodpasture's Syndrome
Hepatopulmonary Syndrome (HPS) 

HPS-differential diagnosis:
1. Pulmonary vasculature
2. Diseases of the lung parenchyma
3. Pleura and diaphragm

HPS-diagnosis:
1. Patients
Hepatopulmonary Syndrome ... (HPS) HPS-differential ... Pulmonary vasculature ... Diseases of the lung ... Alveolar-arterial
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... Diagnosis Algorithm ... • Interstitial lung ... Arterial Hypertension ... Hypoventilation Syndrome
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Lung Abscess - Clinical ... seen • Chest CT ... #Abscess #pulmonary ... #differential #
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
CAN YOU SEE ON CT ... involving both lungs ... 3) Infection (Bacterial ... Bronchiectasis #pulmonary ... #diagnosis #differential
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Respiratory Distress Syndrome ... week of a known clinical ... computed tomographic (CT ... lobar collapse, lung ... Definition #Criteria #Diagnosis
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
coagulopathy) • CBC w differential ... Other tests: • CT ... sparing of the lung ... seen on chest CT ... #differential #
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
in the adjacent lung ... high-resolution chest CT ... cultures (sputum for bacteria ... #differential # ... diagnosis
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... , Interstitial Lung ... #hypoxemia #differential ... #diagnosis