56 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Sarcoidosis or Lofgren's syndrome ... Ulcerative Colitis ... HepB, HepC Bacterial ... #Differential #Diagnosis ... #Dermatology #SkinRash
Causes of Arterial and Venous Thrombosis - Differential Diagnosis Framework

STRUCTURAL:
 - PFO: paradoxical emboli
 - Popliteal
and Venous Thrombosis ... - Differential Diagnosis ... thrombosis - ... #Differential #Diagnosis ... #clots #hematology
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
vs Arterial Thrombosis ... - Differential Diagnosis ... • Nephrotic Syndrome ... THROMBOSIS Arterial ... #differential #diagnosis
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
- Differential Diagnosis ... Herpes simplex - Bacterial ... Cryptococcosis #Ulcers #ulcerative ... #skinrash #dermatology ... #Differential #Diagnosis
Mucous Membrane Disorder - Differential Diagnosis Algorithm
Erosions/Ulcers/Blisters
 - Primary Dermatologic Diseases
     •
- Differential Diagnosis ... Blisters - Primary Dermatologic ... Stevens-Johnson Syndrome ... bowel disease (ulcerative ... • Behcet's syndrome
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
- Differential Diagnosis ... ) • Behcet's syndrome ... genitals #Ulcers #ulcerative ... #skinrash #dermatology ... #Differential #Diagnosis
Skin Ulcers of the Lower Legs / Feet - Differential Diagnosis Algorithm
Physical:
• Pressure
• Trauma
• Radiation
Vascular:
• Arterial
- Differential Diagnosis ... Vascular: • Arterial ... #Feet #Ulcers #ulcerative ... #skinrash #dermatology ... #Differential #Diagnosis
Differential Diagnosis of Necrotizing Fasciitis: 

Cellulitis, 
Superficial abscess, 
Deep vein thrombosis 
(see phlegmasia cerulea dolerans), 
Compartment
Differential Diagnosis ... abscess, Deep vein thrombosis ... Compartment syndrome ... , Arterial insufficiency ... #Differential #Diagnosis
Differential diagnosis of schistocytes / fragmentation hemolysis:
 • Thrombotic microangiopathies (TMA)
    - TTP
Differential diagnosis ... hemolysis: • Thrombotic ... hemolytic-uremic syndrome ... - Drug-induced thrombotic ... #hematology #hemolysis
Fever and Rash - Differential Diagnosis Framework
 • Viral: Measles, Infectious Mono (EBV, CMV), Acute HIV,
- Differential Diagnosis ... Disseminated HSV • Bacterial ... , DRESS, Sweet syndrome ... #Differential #Diagnosis ... #dermatology