34 results
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
lung diseases ... I-JIP: usual interstitial ... AIP: acute interstitial ... PSS: Sjogren syndrome ... #Rheumatology #
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Differential Diagnosis ... Pneumonia • (UIP ... 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 ... pneumonia (DIP) ... Churg Strauss syndrome ... ILD #diagnosis #differential ... #pulmonary #causes
Cystic Lung Disease
Upper Lobe Predominant: 
Langerhans Cell Histiocytosis, Pneumocystis Jiroveci, Hypersensitivity Pneumonitis, Neurofibromatosis Type 1, Paracoccidioidomycosis,
Cystic Lung Disease ... , Lymphocytic Interstitial ... , Desquamative Interstitial ... nickmmark #Cystic #Lung ... #Disease #differential
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
POCUS lung exam ... Differential Bilat ... : Pulmonary edema ... lung disease, interstitial ... Lung POCUS shows
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Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
Thickening of the interstitium ... lung disease (i.e ... predominance: UIP ... Diagnosis #Radiology #Pulmonary ... #GroundGlass #Differential
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... Limitation • Interstitial ... lung disease ... Hypoventilation Syndrome ... Hypoxemia #Hypoxia #Differential
Causes of Dyspnea - Differential Diagnosis Algorithm
Cardiac:
 • Dysrhythmia
 • Ischemia
 • Cardiomyopathy
 • Valvular disease
Causes of Dyspnea - Differential ... Superior vena cava syndrome ... • Cancer • Interstitial ... lung disease Vasculature ... 2LmUODZ #Dyspnea #Differential
Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
, pulmonary congestion ... due to alveolar syndrome ... fibrotic alveolar syndrome ... artifact); (G) UIP ... Diagnosis #HRCT #POCUS
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... Disease, Interstitial ... Lung Disease ... Hypoxia #hypoxemia #differential