6034 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
Cold Urticaria Prevalence ... and duration of symptoms ... angioedema Other symptoms ... Disorientation, vertigo Diagnostic ... #diagnosis #rheumatology
Alpha-gal Syndrome (AGS) - Diagnosis Algorithm
Does patient have recurrent episodes of urticaria, angioedema or isolated GI
Syndrome (AGS) - Diagnosis ... recurrent episodes of urticaria ... - Nighttime symptoms ... often an early symptom ... Syndrome #AGS #Diagnosis
Anaphylaxis: Signs and Symptoms
Anaphylaxis: when any egg of three conditions is met:
1. Acute onset of skin/mucosal
Anaphylaxis: Signs and Symptoms ... Rapid onset of symptoms ... Signs / Symptoms ... ischemia) • Urticaria ... pathophysiology #immunology #diagnosis
There are 2 Major Types of Angioedema:
 - Mast cell / histamine mediated – usually presents
angioedema AND allergic symptoms ... (urticaria, flushing ... WITHOUT allergic symptoms ... think ACEi #Diagnosis
Extrapulmonary manifestations of COVID-19
 • Neurologic: Headaches, Dizziness, Encephalopathy, Guillain-Barré, Ageusia, Myalgia, Anosmia, Stroke
 • Renal:
Erythematous rash, Urticaria ... Extrapulmonary #Diagnosis ... #Signs #Symptoms
Clinical manifestations of anaphylaxis. 
Neurological (<15%): Dizziness, syncope, seizures, Confusion, impending doom. headache
Angioedema: Lips, tongue, orbit,
Mucosa 80-90%): Urticaria ... anaphylaxis #signs #symptoms ... #diagnosis #criteria
Bullous Pemphigoid - Diagnosis and Management Summary
Pathophysiology: Autoantibody-mediated damage to epithelial basement membrane -> separation of
Bullous Pemphigoid - Diagnosis ... Clinical Signs/Symptoms ... resemble eczema or urticaria ... Bullous #Pemphigoid #Diagnosis
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Vasculitis, Purpura, Urticaria ... erythematosus #signs #symptoms ... #diagnosis #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... Vasculitis): - Urticaria ... Differential Diagnosis ... Presentation - Systemic Symptoms ... #differential #diagnosis
Manifestations of Anaphylaxis by Body System

Dermatologic/mucosal

 - Eyes: periorbital swelling/erythema, injected conjunctiva, tears

 - Oral mucosa:
lips - Skin: urticarial ... cessation of play #Diagnosis ... Allergy #Signs #Symptoms