133 results
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
• Rickettsial diseases ... • Crohn disease ... • Behcet disease ... Non-Infectious Causes ... or lung abscess
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
Red Flags: • Fever ... disease or CHF) ... ) • Abnormal CXR ... disease #Chronic ... Diagnosis #Algorithm #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... : • 80% have fever ... Blood cultures • CXR ... ) • CXR upright ... decubitus - air fluid level
Lung Abscess
Microbiology:
 • Polymicrobial 
 • Anaerobes (most common) 
Clinical: 
 • Indolent symptoms that evolve
Lung Abscess Microbiology ... to rnonths • Fever ... , hemoptysis Treatment ... meropenem) #Lung ... Pulmonary #Clinical #CXR
Causes of Pericardial Effusion - Differential Diagnosis
Infectious:
 • Viral: Enterovirus, Herpesvirus, Adenovirus, Parvovirus
 • Bacterial: Mycobacterium
Causes of Pericardial ... Non-Infectious: • Rheumatologic ... Mediterranean Fever ... - Metastatic: Lung ... #cardiology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
• Periodic fever ... multiorgan failure • Fever ... - Nonremitting fever ... rash) • Heart, lung ... Treatment: • Corticosteroids
Interstitial pneumonias
An acute reticular pattern is most frequently caused by interstitial edema due to cardiac heart
most frequently caused ... The other cause ... cough and some fever ... #Clinical #Radiology ... #CXR #Acute #Interstitial
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Diagnosis Framework Disease ... loss, lethargy, fever ... angioinvasive disease ... • Fever, weight ... factor • May cause
Systolic Murmurs - Differential Diagnosis Algorithm
Benign / Flow / Hyperdynamic:
 • Pregnancy
 • Fever
 • Anemia
Supravalvular
Pregnancy • Fever ... • Rheumatic Fever ... • Rheumatic Fever ... • Rheumatic Fever ... Diagnosis #Algorithm #causes
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 #ChestXRay