8 results
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
lung diseases ... interstitial pneumonia ... I-JIP: usual interstitial ... AIP: acute interstitial ... PSS: Sjogren syndrome
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Interstitial Lung ... pneumonia (DIP) ... pneumonia (AIP) ... Churg Strauss syndrome ... ILD #diagnosis #differential
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Limitation • Interstitial ... lung disease ... Malformation • Severe Pneumonia ... Hypoventilation Syndrome ... #Hypoxia #Differential
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Atelectasis, ARDS, Pneumonia ... Lung Disease ... #Hypoxia #hypoxemia ... #differential #
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
on Lung POCUS ... Differential Bilat ... : Pulmonary edema ... lung disease, interstitial ... #Lung #POCUS #clinical
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... oxygen • Causes: Interstitial ... • Causes: Pneumonia ... hepatopulmonary syndrome ... #Differential #
Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
due to alveolar syndrome ... artifact); (G) UIP ... #Clinical #Diagnosis ... #HRCT #POCUS #Lung ... #Correlation #Table
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
salivary ducts Clinical ... pneumonia • Usual ... interstitial pneumonia ... , INC risk PE, Pulmonary ... MALT Lymphoma • Lung