26 results
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
• Idiopathic pulmonary ... Churg Strauss syndrome ... Acute, Chronic • Pulmonary ... #diagnosis #differential ... #pulmonary #causes
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... : • 3 syndromes ... of a "flu-like syndrome ... Infections #HIV #AIDS #pulmonary ... #differential #
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
disease-associated interstitial lung ... PSS: Sjogren syndrome ... ConnectiveTissueDiseases #ILD ... CTILD #Diagnosis #Differential ... Comparison #Table #Pulmonary
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
- Clinical manifestations ... cough, dyspnea, fever ... , Pulmonary lymphoma ... #COP #BOOP #pulmonary ... #ILD #diagnosis
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
to Eosinophilic Lung ... Acute Eosinophilic Pneumonia ... Hypereosinophilic Syndrome ... #Diseases #pulmonary ... #differential #
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
B-Lines in case of Pneumonia ... healthy pt with fever ... Differential Bilat ... : Pulmonary edema ... #Lung #POCUS #clinical
Based on the images alone, it is usually not possible to determine the cause of the
and other non-pulmonary ... Lobar pneumonia ... Organizing pneumonia ... nodular interstitial lung ... Consolidation #Causes #RadiologyAssistant
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Room Air + Sea Level ... Hypoventilation Syndrome ... Atelectasis, ARDS, Pneumonia ... , Interstitial Lung ... Hypoxia #hypoxemia #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 ... obesity-hypoventilation syndrome ... hypoxemia • Causes: Pneumonia ... hepatopulmonary syndrome
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Differential Diagnosis ... gram-negative pneumonia ... • Hyper-IgD syndrome ... or lung abscess ... #Patterns #Differential