56 results
Pathogens in Pneumonia

Here is a quick review of the pathogens causing pneumonia (useful for enumerating differentials
for enumerating differentials ... smoking. structural lung ... Burkholderia — structural lung ... MAC (structural lung ... #Differential #
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... in HIV - Differential ... : • 3 syndromes ... of a "flu-like syndrome ... AIDS #pulmonary #differential
Monoarthritis - Differential Diagnosis
Infection (Acute):
 - S. aureus (most common)
 - S. pneumonia
 - Salmonella (in
Monoarthritis - Differential ... common) - S. pneumonia ... birefringent - CPPD ... Sarcoid - Erosive OA ... Monoarthritis #Differential
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Interstitial Lung ... Bird fanciers' lung ... (coal workers' lung ... Churg Strauss syndrome ... ILD #diagnosis #differential
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... Disease (Asthma, COPD ... • Interstitial lung ... Malformation • Severe Pneumonia ... Hypoventilation Syndrome
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
disease-associated interstitial lung ... lymphoid interstitial pneumonia ... OP: organizing pneumonia ... PSS: Sjogren syndrome ... CTILD #Diagnosis #Differential
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Hyponatremia - Differential ... - Cirrhosis Syndrome ... carcinoma of the lung ... pathology (e.g. pneumonia ... , COPD exacerbation
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
myelodysplastic syndrome ... LESIONS - Bacterial pneumonia ... - Viral pneumonia ... Patterns #Pulmonary #Lung ... ComputedTomography #Differential
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
and Associated Lung ... pleura reflection) Pneumonia ... Respiratory Distress Syndrome ... sliding COPD or ... #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 ... Differential Bilat ... had Mycoplasma pneumonia ... BLines #Bilateral #Pneumonia ... #Lung #POCUS #clinical