671 results
Causes of Urticaria

Immunoglobulin E (IgE) mediated

 - Aeroallergens

 - Contact allergen

 - Food allergens

 - Insect
Causes of Urticaria ... - Parasitic infections ... - Water #Diagnosis ... #Differential # ... Urticaria #IgE #
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Involving the Skin - Differential ... Diagnosis Framework ... related vasculitis, infections ... - Anti-C1q (Urticarial ... #diagnosis
Urticaria (hives): Skin reaction that occurs in response to cold, food allergies, meds, environmental exposures, stings,
infections
Urticaria (hives ... food allergies, meds ... exposures, stings, infections ... Dermatology #SkinRash #Urticaria
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
Cold Urticaria Prevalence ... Infections 2. ... Disorientation, vertigo Diagnostic ... .14674 #Cold #Urticaria ... #diagnosis #rheumatology
Urticaria Mimics

Conditions That May Be Confused with Urticaria

Arthropod bites 
, Atopic dermatitis 
, Bullous pemphigoid 
,
Urticaria Mimics ... Confused with Urticaria ... Viral exanthem #Diagnosis ... #Differential # ... Urticaria #Mimics
Infectious Diseases Presenting with Rash

#InfectiousDisease #Infections #Rashes #Comparison #Table #Differential #Diagnosis
Infectious Diseases ... InfectiousDisease #Infections ... Comparison #Table #Differential ... #Diagnosis
Lymphadenopathy - Differential Diagnosis Algorithm
Localized: 
 • Cervical: EBV, CMV, HIV, Toxo, TB, Lymphoma, Head /
Lymphadenopathy - Differential ... Diagnosis Algorithm ... Anti-epileptic drugs (AEDs ... Lymphadenopathy #Differential ... #Diagnosis #Algorithm
Red Leg - Cellulitis Mimickers
 - Unilateral
     • Contact Dermatitis
• Tinea Pedis ... Lipodermatosclerosis - Non-infectous ... Vasculitis - Infectious ... mimickers #redleg #diagnosis ... #differential
Causes of Leukocytosis and Leukopenia - Differential Diagnosis
 • Eosinophilia (AEC > 500, hypereosinophilia > 1500):
and Leukopenia - Differential ... Diagnosis • Eosinophilia ... Lymphocytosis: Infection ... Leukocytosis #Leukopenia #Differential ... #Diagnosis #causes
Cervical Lymphadenopathy - Lymph Node Drainage
Preauricular nodes - Drain scalp, skin
 • Differential diagnosis: Scalp infections,
infections, mycobacterial ... infection • Malignancies ... mycobacterial/fungal infections ... upper respiratory infection ... mycobacterial infection