79 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Sarcoidosis or Lofgren's syndrome ... Psittacosis, Bartonella, Syphilis ... #Differential #Diagnosis ... #Dermatology #SkinRash
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
Genital Skin Ulcers ... - Differential Diagnosis ... ) • Behcet's syndrome ... Painless: • Primary syphilis ... #Algorithm #causes
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
Skin Ulcers by Etiology ... - Differential Diagnosis ... Tabes dorsalis (syphilis ... #Differential #Diagnosis ... #Algorithm #causes
Skin Ulcers of the Lower Legs / Feet - Differential Diagnosis Algorithm
Physical:
• Pressure
• Trauma
• Radiation
Vascular:
• Arterial
Skin Ulcers of the ... - Differential Diagnosis ... Tabes dorsalis (syphilis ... ulcerative #skinrash #dermatology ... #Algorithm #causes
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Skin rash and malaise ... with or without treatment ... , but without treatment ... resembling rashes caused ... #Rash #Diagnosis
Central Distribution, Febrile / Ill:
 - Viral Exanthem 
 - Lyme Disease (erythema migrans) 
Central Distribution,
Stevens-Johnson Syndrome ... meningococcaemia - Syphilis ... Rash #Algorithm #Diagnosis ... #Dermatology #Skin
Genital Lesions - Differential Diagnosis Algorithm
Elevated - Vesicles:
 • Herpes simplex
Elevated - Papules / Plaques -
- Differential Diagnosis ... • Secondary Syphilis ... ) • Reiter's syndrome ... #skinlesions #dermatology ... #Algorithm #causes
The Stages of Syphilis 

Primary Syphilis 
- The chancre lesion is the hallmark of primary syphilis.
Without treatment ... soles in 50% of cases ... and nephrotic syndrome ... granuIomas on skin ... Latent #Tertiary #Diagnosis
Myelodysplastic Syndrome (MD) - Diagnosis and Management Summary
myelo (marrow) -dys- (abnormal) -plastic (shape) = funny-shaped cells
Myelodysplastic Syndrome ... old, ~10,000 new cases ... only curative treatment ... #Management #treatment ... #hematology #oncology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... purple, hemorrhagic skin ... Kasabach-Merritt syndrome ... Gardner-Diamond syndrome ... #Differential #Diagnosis