CSU Diagnostic Algorithm Tool
Early and appropriate diagnosis is an important step in the chronic spontaneous urticaria (CSU) patient journey. Use this interactive tool to help with CSU diagnosis.
Explore the multiple pathways that may be helpful to confirm a diagnosis of chronic spontaneous urticaria and exclude differential diagnosis. Which of the disease-related symptoms and diagnoses apply to your patients?
Wheals?
Angioedema?
Adapted with permission from Zuberbier et al.
AAE, acquired angioedema due to C1-inhibitor deficiency; ACE-Inh, angiotensin-converting enzyme inhibitor; AE, angioedema; AID, autoinflammatory disease;
EAACI, European Academy of Allergy and Clinical Immunology; EDF, European Dermatology Forum; GA2LEN, Global Allergy and Asthma European Network;
HAE, hereditary angioedema; WAO, World Allergy Organization.
Zuberbier T et al. Allergy. 2022;77(3):734-766.
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