31 results
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash ... Algorithm Reactive ... Multiforme - Target lesions ... #Reactive #SkinRash ... #Algorithm #causes
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
- Differential Diagnosis ... Algorithm Painful ... Painless: • Primary syphilis ... Ulcers #ulcerative #skinrash ... #Algorithm #causes
Natural History of Syphilis
Primary - 2-6 weeks after infection
 • Chancre, Regional lymphadenopathy
Early Latent ≤ 1
Natural History of Syphilis ... • Rash, Fever ... lymphadenopathy, Mucosal lesions ... (10%); Ocular syphilis ... #progression #diagnosis
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
- Differential Diagnosis ... Algorithm Polyarticular ... • Secondary Syphilis ... Papules & Mucosal Lesions ... #Causes
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
Pustular Skin Rash ... Algorithm Pruritic ... / Erythematous lesions ... #Pustular #SkinRash ... #Algorithm #causes
Skin Ulcers of the Lower Legs / Feet - Differential Diagnosis Algorithm
Physical:
• Pressure
• Trauma
• Radiation
Vascular:
• Arterial
- Differential Diagnosis ... Algorithm Physical ... Tabes dorsalis (syphilis ... Ulcers #ulcerative #skinrash ... #Algorithm #causes
Central Distribution, Febrile / Ill:
 - Viral Exanthem 
 - Lyme Disease (erythema migrans) 
Central Distribution,
/ Ill, Target Lesions ... meningococcaemia - Syphilis ... Maculopapular #Macular ... Macules #Papules #Rash ... #Algorithm #Diagnosis
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin Rash ... silvery scale on elbows ... • Secondary Syphilis ... Papulosquamous #SkinRash ... #Algorithm #causes
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Secondary Syphilis ... Rash Secondary ... heaped, wart-like lesions—Condyloma ... resembling rashes caused ... #Rash #Diagnosis
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
- Differential Diagnosis ... Algorithm Physical ... Tabes dorsalis (syphilis ... Ulcers #ulcerative #skinrash ... #Algorithm #causes