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Genital ulcers

By Dr. Elise Merchant @EAMerchant via Febrile [febrilepodcast.com]

#ID  #Infectious Diseases  #Infections
#Differential #Ddx #Diagnosis
#STI
#ulcers #hsv #chancroid ... #hducreyi #syphilis ... #chlamydia #lgv
Differential diagnosis of genital ulcers
Table Comparing HSV, Syphilis, Chancroid and LGV

#Diagnosis #Genital #Ulcers #Differential #Comparison #Table
HSV, Syphilis, Chancroid ... and LGV #Diagnosis ... Comparison #Table #Chancroid ... #LGV #Syphilis
Genital Ulcer - Differential Algorithm
Painful
 - H. ducreyi (Chancroid)
 - HSV
Painless
 - T pallidum (Chancre)
 -
Painful - H. ducreyi ... (Chancroid) -
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
• Haemophilus ducreyi ... (chancroid) •
Genital Lesions - Differential Diagnosis Algorithm
Elevated - Vesicles:
 • Herpes simplex
Elevated - Papules / Plaques -
• Haemophilus ducreyi ... (chancroid) •
MIAMI Mnemonic for Differential Diagnosis of Lymphadenopathy
Malignancies
 - Kaposi sarcoma, leukemias, lymphomas, metastases, skin neoplasms
Infections
 -
(Bartonella), chancroid
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
- Mediators: lgE ... Allergen-specific lgE ... of Action: IgG/lgM
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Mechanisms Type I - lgE ... Allergen-specific lgE ... allergen binds to the lgE ... cross-linking of lgE
Lower GI Bleeding - Scoping Summary
 • Hematochezia
 • History and Physical
 • LGI Bleeding and
and Physical • LGI
Type I Hypersensitivity: Pathogenesis and clinical findings
Definition: Production of lgE Antibodies that bind to harmless allergens
Production of lgE ... cells that secrete lgE-antibodies ... Allergen-specific lgE ... Allergen: Pre-formed lgE