25 results
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Reversed Halo Sign ... Causes: Mucormycosis ... Causes: Granulomatosis ... , Pulmonary embolism ... Reverse #Halo #Sign
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
replicates within CNS ... invasion via URT infection ... infection -> Parotid ... widespread infection ... peds #pediatrics #pathophysiology
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... • CT: Halo sign ... Lymphadenopathy, CNS ... factor • May cause ... #HIV #AIDS #pulmonary
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
Bilateral B-Lines in case ... pulm edema not PNA ... /lung sliding: Pulmonary ... interstitial diffuse infections ... partially seen shred sign
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
sliding/barcode sign ... pleura reflection) Pneumonia ... pleura in severe cases ... submassive PE) POCUS ... #Lung #POCUS #ultrasound
Causes of Fever in the Immunocompromised Host - Differential Diagnosis Algorithm
Structural Defect - Asplenia/HypospIenism
 • Bacteremia/Septic
Causes of Fever ... jirovecii • CNS ... Infection Neutropenia ... Diagnosis #Algorithm #Causes ... #Hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... hemoglobinuria (PNH ... disorders, Mycoplasma pneumoniae ... infection) ... Extravascular #Causes
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
SLE) - Viral infections ... deficiencies - PNH ... APLS • Acute Infectious ... Streptococcus pneumoniae ... #rheumatology #
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
: • Recurrent infection ... Chronic inflammation causes ... Most Common Causes ... : TB, NTM, PNA ... Nasal polyps and signs
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Acute and Chronic Causes ... Differential Diagnosis Pulmonary ... Pleural effusion, Pneumonia ... , Anaphylaxis, Infection ... hernia, Obesity CNS