Angioedema is a potentially life-threatening disease cate-gorised into several forms such as allergic, hereditary, acquired autoimmune and idiopathic. Allergic angioedema is dependent on histamine release, whereas mutations in the C1-inhibitor and factor XII genes have been described in hereditary angioedema (1, 2). Bradykinin-induced acquired angioedema is often caused by antibodies to C1-inhi...

BACKGROUND The precise pathogenesis of chronic spontaneous urticaria (CSU) remains unknown. However, an important association between CSU and autoimmune disorders such as Hashimoto's disease (HD) has been reported. We investigated the frequency of HD as a comorbidity of CSU and the prevalence rate of autoreactivity among CSU patients with HD. PATIENTS AND METHODS The presence of thyroid autoa...

BACKGROUND Based on the histologic findings of fully developed lesions, leukocytoclastic vasculitis has been regarded as the histologic criterion for differentiating urticarial vasculitis from urticaria. Nevertheless, because the early lesions have not been examined histologically, the key biological events leading to the development of leukocytoclastic vasculitis remain unknown. To address thi...

Dupilumab is an anti-IL-4 receptor monoclonal antibody used to treat persistent uncontrolled asthma. We characterize a previously undescribed injection-site urticarial reaction in patients receiving Dupilumab. Case series of two evaluated at Emory University Hospital 2019-2020 who developed urticaria after Patient 1 31-year-old female with history asthma, allergic rhinitis 200mg biweekly. Her f...

468 Urticarial Vasculitis After Bee-sting Therapy June-Hyuk Lee, Sung Woo Park, An-Soo Jang, DoJin Kim, and ChoonSik Park. Respiratory and allergy, Soonchunhyang University Bucheon Hospital, Bucheon, South Korea; Division of Respiratory and Allergy Medicine, Soonchunhyang University Hospital, College of Medicine, Bucheon, South Korea. Background: Bee-sting therapy is one of the oriental traditi...

Pruritic urticarial papules and plaques of pregnancy (PUPPP) are among the most common pruritic dermatoses observed in pregnant women. PUPPP appears most frequently in the third trimester, in primigravidas, and in multiple gestation pregnancies. The eruption of changes occurs initially on the abdomen and extends over the thighs, legs, back, buttocks, arms, and breasts. Skin changes typical for ...