42 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... Sarcoidosis or Lofgren's syndrome ... Nodosum #Mnemonic #Causes ... #Dermatology #SkinRash
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
mediated; exposure to allergen ... causes development ... of allergen-specific ... Allergic reaction ... Stevens-Johnson Syndrome
Drug Reaction with Eosinophilia and Systemic Signs (DRESS Syndrome): Formerly known as drug hypersensitivity reaction, DRESS
represents
Systemic Signs (DRESS Syndrome ... associated with allergic ... medication (in this case ... #Dermatology #SkinRash ... #DRESS #Syndrome
Drug Reaction with Eosinophilia and Systemic Signs (DRESS Syndrome): Formerly known as drug hypersensitivity reaction, DRESS
represents
Systemic Signs (DRESS Syndrome ... associated with allergic ... medication (in this case ... #Dermatology #SkinRash ... #DRESS #Syndrome
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
) • Behcet's syndrome ... Ulcers #ulcerative #skinrash ... Diagnosis #Algorithm #causes
Acute Pharyngitis: Differential Diagnosis
Infectious:
 • Respiratory viruses (25-45%)
 • Group A Strep (5-15%)
 • Other bacteria:
Acute Retroviral Syndrome ... Diffuse viral syndromes ... Noninfectious: • Allergic ... PFAPA, Behcet syndrome ... Differential #Diagnosis #causes
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
of lgE Abs that bind ... leading to an allergic ... cell surfaces causes ... leading to an allergic ... causes development
Peri-operative Hyperthermia - Guidelines for Crises in Anaesthesia
If prolonged or ≥ 39 C this is a
maintained fever CAUSES ... transfusion • Allergic ... • Serotonin syndrome ... Anticholinergic syndrome ... #Differential #Causes
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Mechanism of Action: Allergen-specific ... lgE causes mast-cell ... lgM antibodies bind ... reactions #types #allergy
Differential Diagnosis of Pulmonary Eosinophilia
Infection:
 • Helminthic: Loffler syndrome (Ascaris, hookworm, Strongyloides), Tropical pulmonary eosinophilia (lymphatic
Helminthic: Loffler syndrome ... coccidioidomycosis), Allergic ... Hypereosinophilic syndrome ... Differential #Diagnosis #causes