10 results
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
inflammation or infection ... /purpura with fever ... gonococcal disease, endocarditis ... /purpura with fever ... #Diagnosis #Dermatology
Primary and Secondary Causes of Mitral Regurgitation
Primary (organic) chronic mitral regurgitation:
 • Leaflet: Rheumatic fever, Infective
, Infective endocarditis ... , Infective endocarditis ... • Prosthetic valve ... annulus valve: ... Regurgitation #differential
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Rash - Differential ... - Trauma - Infection ... Red Flags: • Fever ... Schonlein Purpura - Endocarditis ... #Differential #
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
Regions - Frequent Differential ... infective endocarditis ... • Bleeding, petechia ... endocarditis ... Returning #Traveler #differential
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
quinine, etc) - Viral ... infiltration: malignancy, infection ... - Mechanical: valve ... replacement, endocarditis ... Diagnosis #Framework #hematology
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Involves aortic and mitral ... night sweats, fever ... hemorrhages • Petechiae ... Marantic (NTBE) Differential ... Persistent bacteremia/fevers
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... CTD (SLE) - Viral ... mountain spotted fever ... • Bacterial endocarditis ... palpable #nonpalpable
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
infection • ... Subacute bacterial endocarditis ... infection, Amyloidosis ... - Bacterial endocarditis ... #joint #pain #differential
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
and Differential ... involves aortic and mitral ... night sweats, fever ... hemorrhages • Petechiae ... #Endocarditis #Differential
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... By: - Chronic Infection ... • Rheumatic fever ... or more joints Viral ... • Bacterial endocarditis