13 results
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... Lobar pneumonia ... of breath with low ... nodular interstitial lung ... Diagnosis #Radiology #CXR
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
(It's usually low ... Constitutional symptoms ... factor • May cause ... infiltrates or lobar ... Infections #HIV #AIDS #pulmonary
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
diagnosis The table ... Now it is obvious ... pneumonia caused ... Diagnosis #Radiology #Pulmonary ... #CXR #Consolidation
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
pleural effusion on CXR ... inflammation tends to cause ... interstitial lung ... disease/pulmonary ... pathophysiology #signs #symptoms
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... pain, hemoptysis, dyspnea ... Blood cultures • CXR ... early disease) • CXR ... #Abscess #pulmonary
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... nodular, high and low ... attenuation (table ... seen and in many cases ... Diagnosis #Radiology #Pulmonary
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
high WBC count cause ... Pulm: Hypoxia, dyspnea ... , +/- CXR infiltrates ... have fever - ACS ... , Low calcium •
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
blood cells in the lung ... 10,000 ft) • Symptoms ... walking uphill - Dyspnea ... Tachypnea, - Low-grade ... hypertension, dyspnea
Sarcoidosis - Diagnosis and Management Summary
Epidemiology
1) High incidence in Scandinavian countries (11-24 cases per 100,000 individuals
granulomas within the lungs ... are not caused ... e.g. incidental CXR ... Pulmonary: dyspnea ... , arrhythmias, dyspnoea
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
inflammation Symptoms ... • Hypoxia • Dyspnea ... Most Common Causes ... in the adjacent lung ... of the affected lung