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Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
Annotated on Chest ... radiopaedia.org/cases ... lang=us #Lung # ... lobes #Segments #Chest ... #CT #CTChest #pulmonary
Cystic Lung Disease
Upper Lobe Predominant: 
Langerhans Cell Histiocytosis, Pneumocystis Jiroveci, Hypersensitivity Pneumonitis, Neurofibromatosis Type 1, Paracoccidioidomycosis,
Cystic Lung Disease ... Syndrome, Lymphocytic Interstitial ... , Desquamative Interstitial ... nickmmark #Cystic #Lung ... differential #diagnosis #causes
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Causes of Interstitial ... Lung Disease - ... Lymphangioleiomyomatosis (LAM), • Pulmonary ... leaking out of pulmonary ... #ILD #Causes #Differential
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Interstitial Lung ... ILD caused by inhalation ... • Idiopathic pulmonary ... #differential #pulmonary ... #causes
Pulmonary Function Tests (PFTs) - Interpretation Algorithm
 • Normal
 • Pulmonary Hypertension, Anemia, Carboxyhemoglobinemia
 • Chest
Pulmonary Function ... • Normal • Pulmonary ... Carboxyhemoglobinemia • Chest ... Disorders • Interstitial ... Lung Disease
Pulmonary Function Testing (PFT) Interpretation Algorithm

Restrictive Lung Disease:
 • Chest wall or neuromuscular disorders
 • Interstitial
Pulmonary Function ... Disease: • Chest ... disorders • Interstitial ... lung disease ... MatthewHoMD #Pulmonary
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Limitation • Interstitial ... lung disease ... Abnormalities • Chest ... Diagnosis #Algorithm #Causes
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
lung disease comes ... On a Chest X-Ray ... lung disease and ... seen and in many cases ... Diagnosis #Radiology #Pulmonary
ILD of Known Cause - Differential Diagnosis
Exposure:
 • Occupational: Asbestosis, Silicosis, Hypersensitivity, Pneumonitis
 • Treatment Related:
ILD of Known Cause ... BrighamChiefs #ILD #Causes ... Differential #Diagnosis #interstitial ... #lung #disease ... #pulmonary
Here are the most common examples of these four patterns on a chest x-ray (click image
patterns on a chest ... consolidations Interstitial ... - Reticular interstitial ... mass - Solitary Pulmonary ... Nodule - Multiple Masses