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Results for “Erythema Multiforme”

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PubMed2001

Erythema multiforme associated with cytomegalovirus infection in nonimmunosuppressed patients.

BACKGROUND: It is widely known that cytomegalovirus (CMV) primarily brings about subclinical and asymptomatic infection in the early stages of life and can cause various dermatological and systemic disorders under immunosuppressed conditions. Nonimmunosuppressed individuals very rarely present with cutaneous CMV involvement. OBJECTIVE: In the present study, we described the clinical characteristics of 5 nonimmunosuppressed adult patients with positive IgM antibody to CMV. METHODS: The systemic symptoms and dermatological features of these 5 patients were described. Laboratory examinations including blood cell counts, liver and renal functions were performed. IgG and IgM antibodies to CMV were also examined at the first consultation and 2-3 months after the skin eruption. Polymerase chain reaction for CMV DNA was performed in the skin samples of the patients. RESULTS: All 5 patients had fever and complained of a sore throat. Multiple exudative erythema and target lesions with itching were observed mainly on the extremities. These symptoms and eruptions disappeared within 1 week after the onset and IgM antibody titers significantly decreased after 2-3 months. IgG antibody to CMV was already positive in 3 cases but was negative in 2 cases at the initial consultation. CONCLUSION: We propose that CMV infection may cause erythema multiforme by primary, recurrent infections or reactivation of CMV even in nonimmunosuppressed adults.

Adult↗
PubMed1995

Increased expression of vascular permeability factor (vascular endothelial growth factor) in bullous pemphigoid, dermatitis herpetiformis, and erythema multiforme.

Vascular permeability factor (VPF), also known as vascular endothelial growth factor (VEGF), plays an important role in the increased vascular permeability and angiogenesis associated with many malignant tumors. In addition, VPF/VEGF is strongly expressed by epidermal keratinocytes in wound healing and psoriasis, disorders that are also characterized by increased microvascular permeability and angiogenesis. In this study, we investigated the expression of VPF/VEGF in three bullous diseases with subepidermal blister formation that are characterized by hyperpermeable dermal microvessels and pronounced papillary dermal edema. The expression of VPF/VEGF mRNA was strongly up-regulated in the lesional epidermis of bullous pemphigoid (n = 3), erythema multiforme (n = 3), and dermatitis herpetiformis (n = 4) as detected by in situ hybridization. Epidermal labeling was particularly intense over blisters, but strong expression was also noted in areas of the epidermis adjacent to dermal inflammatory infiltrates at a distance from blisters. Moreover, the VPF/VEGF receptors, flt-1 and KDR, were up-regulated in endothelial cells in superficial dermal microvessels. High levels of VPF/VEGF (138-238 pM) were detected in blister fluids obtained from five patients with bullous pemphigoid. Addition of blister fluid to human dermal microvascular endothelial cells exerted a dose-dependent mitogenic effect that was suppressed after depletion of VPF/VEGF by immunoadsorption. These findings strongly suggest that VPF/VEGF plays an important role in the induction of increased microvascular permeability in bullous diseases, leading to papillary edema and fibrin deposition and contributing to the bulla formation characteristic of these disorders.

Adult↗
PubMed1990

[Erythema multiforme associated with contact sensitization. Description of 6 clinical cases].

Allergic contact dermatitis generally presents itself as an eczematous eruption. However, some allergens, such as plants, exotic woods, topical medications and chemicals have been reported as causing an erythema multiforme-like eruption. We describe 6 patients, 4 women and 2 men ranging from 28 to 66 years. They showed erythematous urticarial papules, plaques and target-lesions similar to the manifestations previously reported as "erythema multiforme-like eruption". On the basis of the positive epicutaneous tests, the aetiological agents of these reactions are presumed to be Idoxuridine, textile dyes, deodorants, paraphenylenediamine and pyrrolnitrin. The clinical pattern, the histopathological features and the pathogenesis are discussed. Finally, the clinical and anamnestic criteria indicating the opportunity of performing patch tests in patients showing an atypical erythema multiforme are suggested.

Aged↗
PubMed1990

[Drug-induced exudative erythema multiforme major with a chronic progressive course and bilateral blindness. Clinical and immunohistologic follow-up].

A 24-year-old male patient who had been received Fansidar developed exudative erythema multiforme major with massive involvement of the skin, mucous membranes, and both eyes. The chronic inflammation led to proliferation of the conjunctiva, with keratinization of the ocular surface and corneal vascularization. The final result was comparable to cicatricial pemphigoid, with blindness of both eyes. In histological sections, massive lympho-plasma-cellular infiltration with circumscribed perivasculitis was seen. The lymphocyte transformation test was still positive 18 months after onset of the disease. Class II antigens were evident in some of the conjunctival biopsies.

Adult↗