73 results
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
Causes of Fever ... - Differential Diagnosis ... Lemierre's syndrome ... the most common vasculitis ... #Differential #Diagnosis
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Differential Diagnosis ... Non-Infectious Causes ... • Hyper-IgD syndrome ... Brucellosis Faget's Sign ... #Differential #Diagnosis
ID Approach to Fever and Rash - Diagnostic Algorithm
Central Maculopapular (most common):
Measles, Parvovirus 819 / EBV,
and Rash - Diagnostic ... Algorithm Central ... Parvovirus B19 (PPGSS), Vasculitis ... angiomatosis, Sweet syndrome ... #Algorithm #Schema
Acute Rheumatic Fever: Pathogenesis and Clinical Findings

Delayed autoimmune reaction
-> Molecular mimicry
-> GAS antigen cross-reacts with host
->
Acute Rheumatic Fever ... inflammation • Fever ... • Arthralgia ... pathophysiology #diagnosis ... #signs #symptoms
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... Kasabach-Merritt syndrome ... Gardner-Diamond syndrome ... mountain spotted fever ... #Differential #Diagnosis
Erythematous Rashes - THE ALGORITHMIC APPROACH

Characterized by diffuse redness of the skin due to
capillary congestion, erythematous
Erythematous Rashes - THE ALGORITHMIC ... the Nikolsky sign ... staphylococcal scalded skin syndrome ... and toxic shock syndrome ... Erythematous #Rash #Algorithm
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... Cryoglobulins Cause ... Vascular Sludging ... Labs/Diagnosis: ... Cryoglobulins #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... Coronary arteries - Fever ... : • Fevers • ... Night sweats • Arthralgias ... purpura: strong sign
Fever of Unknown Origin (FUO) - Further Workup

 • CNS symptoms? Get an LP and imaging
FUO) - Further Workup ... Returning Traveler’ algorithm ... thin smear • Signs ... UnknownOrigin #workup ... #diagnosis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
: • Fevers • Fatigue ... purpura: Strong sign ... and branches • Fever ... pulse deficits vascular ... tract, and often causes