46 results
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
• Rickettsial diseases ... • Crohn disease ... Non-Infectious Causes ... Brucellosis • Liver ... or lung abscess
Liver Abscess
•	Pyogenic abscess, accounts for 80% of abscess.
•	Amebic abscess due to Entamoeba histolytica, accounts for 10%.
•	Fungal
Liver Abscess • ... 50% of solitary liver ... occur in the right Liver ... • Fever in 90% ... cm Continuous fever
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 ... thrombocytopenia • Liver ... #Rheumatology
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... : • 80% have fever ... decubitus - air fluid level ... Intervention: - Fevers ... #differential #causes
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Diagnosis Framework Disease ... angioinvasive disease ... • Fever, weight ... lymphadenopathy, • Abdominal ... factor • May cause
Causes of Pericardial Effusion - Differential Diagnosis
Infectious:
 • Viral: Enterovirus, Herpesvirus, Adenovirus, Parvovirus
 • Bacterial: Mycobacterium
Causes of Pericardial ... Non-Infectious: • Rheumatologic ... Mediterranean Fever ... , Takayasu Disease ... - Metastatic: Lung
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Bone marrow disease ... deficiency • Liver ... Von Willebrand disease ... mountain spotted fever ... #rheumatology #
Adult Onset Still's Disease
Systemic inflammation with urticarial rash.
Rash: 
 • Nonpruritic, evanescent (correlates with time of
correlates with time of fever ... Daily high spiking fever ... - Fever spikes ... Fever of at least ... /splenomegaly, liver
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... symptoms - Headache, fever ... , fatigue, Nausea ... , abdominal pain ... Urticaria #diagnosis #rheumatology
Chronic Abdominal Pain Causes - Differential Diagnosis Framework

Many patients with chronic abdominal pain have had prior
Pain Causes - Differential ... Long-standing vs ... Red Flags: • Fever ... Consider cardiac causes ... genitourinary causes