Annular urticarial lesions in a child must establish a main differential diagnosis with urticaria multiforme, common urticaria, acute hemorrhagic edema of infancy, erythema marginatum, erythema annulare centrifugum, annular erythema in childhood, erythema multiforme, Sweet's syndrome, Schönlein-Henoch purpura, erythematosus lupus, several systemic vasculitis, and serum sickness.

We discuss the case of a 52-year-old woman who developed urticarial lesions after the acute envenomation of a puss caterpillar (Megalopyge opercularis). The puss caterpillar, one of more than 50 species of caterpillars that can cause envenomation in the United States, is considered to be one of the most serious. Its clinical presentation and current recommended treatments are reviewed.

INTRODUCTION Glycerin is a rare sensitizer and is widely used for cosmetics, medicine, and food for its stable, nontoxic properties. We report on a patient with generalized urticarial eruptions who had contact urticaria syndrome caused by glycerin enema. Our case suggests that glycerin can be a cause of contact urticaria syndrome and even anaphylaxis, although allergic reactions to glycerin are...

Introduction Cryopyrin-associated periodic syndrome (CAPS) is an autoinflammatory syndrome caused by heterozygous mutations of CIAS1/NLRP3 gene. Affected patients may present with three different phenotypes: familial cold autoinflammatory syndrome (FCAS), Muckle-Wells syndrome and CINCA syndrome. Common symptoms include sporadic or cold-induced non pruritic urticarial rash and fever. Severe cas...

manifestation of systemic infections in children. Curr Probl Pediatr 1991, 21: 92-113. 3. Fallon RJ. Benign meningococcemia: A rash diagnosis. Lancet 1991, 337: 610. 4. Schuller DE, Elvey SM. Acute urticaria associated with Streptococcal infection. Pediatrics 1980, 65: 592. 5. Kranitz P, Stahl NI. Urticarial vasculitis, immune complex disease and an infected ventricular atrial shunt. Cutis 1985...

Cutis laxa, clinically characterized by loose and pendulous skin related to loss of elastic tissue, is a rare heterogeneous condition. It is classified into congenital and acquired types. We report a case of generalized acquired cutis laxa type 1 in a young man following pruritic urticarial plaques. We have done a brief review of literature.

An elderly male noticed urticarial patches corresponding to cutaneous B cell lymphoma lesions after rituximab treatment. Along with the resolution of urticaria, the lymphoma lesions completely remitted without recurrence. In this communication, we present an interesting case and the pathophysiological findings of a wheal attack in a case with tumor remission following systemic treatment with ri...

Introduction Cryopyrin-associated periodic syndrome (CAPS) is an autoinflammatory syndrome caused by heterozygous mutations of CIAS1/NLRP3 gene. Affected patients may present three different phenotypes: familial cold autoinflammatory syndrome (FCAS), Muckle-Wells syndrome and CINCA syndrome. Common symptoms include sporadic or cold-induced non pruritic urticarial rash and fever. Severe cases su...