Definition
Warning: Array to string conversion in /home/clients/d0fa621b06e69d3a150fb7f06cec713f/vhost/sfdermato.org/reco/dev/APP/worker/locale.php on line 37
Warning: Undefined variable $Array in /home/clients/d0fa621b06e69d3a150fb7f06cec713f/vhost/sfdermato.org/reco/dev/APP/worker/locale.php on line 37
Warning: Trying to access array offset on null in /home/clients/d0fa621b06e69d3a150fb7f06cec713f/vhost/sfdermato.org/reco/dev/APP/worker/locale.php on line 37
Warning: Array to string conversion in /home/clients/d0fa621b06e69d3a150fb7f06cec713f/vhost/sfdermato.org/reco/dev/APP/worker/locale.php on line 37
Warning: Undefined variable $Array in /home/clients/d0fa621b06e69d3a150fb7f06cec713f/vhost/sfdermato.org/reco/dev/APP/worker/locale.php on line 37
Warning: Trying to access array offset on null in /home/clients/d0fa621b06e69d3a150fb7f06cec713f/vhost/sfdermato.org/reco/dev/APP/worker/locale.php on line 37
Warning: Array to string conversion in /home/clients/d0fa621b06e69d3a150fb7f06cec713f/vhost/sfdermato.org/reco/dev/APP/worker/locale.php on line 37
Warning: Undefined variable $Array in /home/clients/d0fa621b06e69d3a150fb7f06cec713f/vhost/sfdermato.org/reco/dev/APP/worker/locale.php on line 37
Warning: Trying to access array offset on null in /home/clients/d0fa621b06e69d3a150fb7f06cec713f/vhost/sfdermato.org/reco/dev/APP/worker/locale.php on line 37
19/01/2026
A chronic inflammatory skin disease
Clinically, urticaria is a papular, erythematous, pruritic and transient rash. It can be superficial (superficial dermal oedema) and/or deep (dermal-hypodermal angioedema).
Chronic spontaneous urticaria (CSU) is defined as urticaria occurring in daily or near-daily flare-ups for at least 6 weeks, without external stimulus, and which cannot be reproduced by provocation tests.
Differential diagnoses
The main differential diagnoses of urticaria are (non-exhaustive list): pseudo-urticarial vasculitis, urticaria pigmentosa (mastocytosis), bradykinin-mediated angioedema, auto-inflammatory diseases.
Disease progression
CSU lasts between 1 and 4 years; treatment helps to control the symptoms but a some patients are still symptomatic after 10 years. The goal of treatment is to reduce or to suppress urticarial symptoms and improve patient quality of life.
➜
