9 results
Maculopapular Rashes - THE ALGORITHMIC APPROACH 

The term maculopapule is a portmanteau, a combination
of macule and
macule and papule (Table ... Patients with centrally ... Those with centrally ... pathognomonic for SJS ... #Diagnosis #Dermatology
Causes of Antibiotic Failure - Differential Diagnosis Framework
Diagnosis:
 • Non-Infectious: Malignant, Autoimmune, Drug-related (NMS, serotonin syndrome,
Causes of Antibiotic ... Failure - Differential ... lines, osteo, endocarditis ... effect/reaction (ie SJS ... , DIHS, drug fever
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
Clinical features: Fever ... intravenous drug use, Central ... Clinical features: Fever ... in up to 30% of cases ... Marantic #diagnosis #table
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... mountain spotted fever ... • Bacterial endocarditis ... Vasculopathy #Purpura #Differential ... #nonpalpable #dermatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... Red Flags: • Fever ... Schonlein Purpura - Endocarditis ... #dermatology #physicalexam
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
catheter • Recent dental ... night sweats, fever ... Septic Emboli Cause ... Marantic (NTBE) Differential ... Persistent bacteremia/fevers
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
Edema in 70% of cases ... Fever >38.5 2. ... Resolution > 15 days Differentials ... drug reaction • SJS ... DRESS #Syndrome #dermatology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
known as rat bite fever ... or Haverhill fever ... Erythemas #comparison #table ... #differential # ... diagnosis #dermatology
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
and Differential ... night sweats, fever ... Septic emboli cause ... Treat underlying cause ... #Differential #