32 results
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... • CT: Halo sign ... , pleural effusion ... Infections #HIV #AIDS #pulmonary ... #differential #
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
pleura reflection) Pneumonia ... Possible bilateral effusion ... submassive PE) POCUS ... #differential # ... #Lung #POCUS #ultrasound
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 ... Differential Bilat ... : Pulmonary edema ... partially seen shred sign
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
6th decades of life ... cough, dyspnea, fever ... Rare: pleural effusions ... , Pulmonary lymphoma ... ILD #diagnosis #management
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... myelodysplastic syndrome, IF ... Aspergillosis PLEURAL EFFUSION ... #Lung #Infections ... ComputedTomography #Differential
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... 760 mm Hg at sea level ... : Interstitial lung ... hypoxemia • Causes: Pneumonia ... Failure #hypoxia #Differential
Good example of 'shred sign' in a patient with fever, cough and shortness of breath. 

This
a patient with fever ... This POCUS finding ... consolidation (i.e ... photo #ultrasound #lung ... #pulmonary
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
decubitus - air fluid level ... pneumonectomy if ... Abscess Differential ... #Abscess #pulmonary ... #differential #
Hemorrhagic Pericardial Effusions (Hemopericardium)- Differential Diagnosis Framework

IATROGENIC DISEASE
Secondary to invasive cardiac procedures

NONIATROGENIC
• Malignancy (e.g., metastatic spread:
Hemopericardium)- Differential ... metastatic spread: lung ... patients with pulmonary ... Mediterranean fever ... have to repeat if
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Room Air + Sea Level ... Atelectasis, ARDS, Pneumonia ... Embolism, Obstructive Lung ... , Interstitial Lung ... Hypoxia #hypoxemia #differential