21 results
Lung Abscess
Microbiology:
 • Polymicrobial 
 • Anaerobes (most common) 
Clinical: 
 • Indolent symptoms that evolve
Lung Abscess Microbiology ... most common) Clinical ... to rnonths • Fever ... , hemoptysis Treatment ... #CXR #ChestXRay
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
disease • Periodic fever ... multiorgan failure • Fever ... - Nonremitting fever ... rash) • Heart, lung ... Treatment: • Corticosteroids
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
Risk factors: Critical ... sequestration and activation ... explain symptoms • Fever ... fluid balance, and CXR ... pulmonary edema) • Fever
A 50 yo F with a history of poor dentition presents to the ED with fever
to the ED with fever ... A CXR is done. ... consistent w/ lung ... abscess #Clinical ... #Radiology #CXR
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Clinical ... : • 80% have fever ... Blood cultures • CXR ... early disease) • CXR ... Intervention: - Fevers
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Activation of CD8 ... accumulation of clinical ... : fever +++, hepatosplenomegaly ... , ↓ Fibrinogen level ... #summary #rheumatology
Differentiation Syndrome in APML
Epidemiology:
 • Incidence: common in APL (2-48% depending on the study)
 • Triggers:
Triggers: ATRA treatment ... Subacute-Acute: • Common: fever ... common • Imaging: CXR ... Renal Failure Treatment ... #oncology
Summary of Oncologic Emergencies

Neutropenic fever:
- Fever + ANC < 500 → start cefepime ± vancomycin (if
Neutropenic fever ... : - Fever + ANC ... interventional radiology ... or HSCT - CRS: fever ... therapy - Symptoms: fever
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
: Overwhelming clinical ... excessive macrophage activation ... following: • Fever ... • Bicytopenia Treatment ... #hematology
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
characteristic features Clinical ... Active TB: • Fever ... and Culture • CXR ... Tuberculosis Treatment ... disease • Check CXR