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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/21663
Title: Cutaneous leukocytoclastic vasculitis: The yield of direct immunofluorescence study
Authors: Kanokvalai Kulthanan
Sumruay Pinkaew
Sukhum Jiamton
Punkae Mahaisavariya
Puan Suthipinittharm
Mahidol University
Keywords: Medicine
Issue Date: 1-May-2004
Citation: Journal of the Medical Association of Thailand. Vol.87, No.5 (2004), 531-535
Abstract: Background: Leukocytoclastic vasculitis (LCV) is a clinico-pathological entity. Previous direct immunofluorescence study (DIF) studies of vasculitis showed positive, findings mainly in the early stage of the disease. Objective: To study the positive yield and patterns of DIF in patients with various stages of LCV. Design: One hundred patients with LCV who attended the Department of Dermatology, Siriraj Hospital from 1997 to 2000 were enrolled in the study. Results: The study showed immunoreactive deposits in blood vessel walls in 76 cases(76%). Forty seven per cent of patients showed immunoreactant deposit only in superficial blood vessel walls, 3% had deposits only in deep blood vessel walls. Superficial and deep blood vessel-wall deposits were seen in 26%. Dermoepidermal deposit in addition to blood vessel wall deposit was found in 39%. The most common immunoreactive deposit was C3 (71%), followed by IgM (35%), IgA (12%) and IgG (8%) respectively. The age of the skin lesions at the time of biopsy ranged from 1 to 7 days. 82% of patients with one day old lesions showed immunoreactive deposits in the blood vessel walls and 74% of the group with lesions aged 2-7 days at the time of biopsy showed immunoreactive deposits in the blood vessel walls. Conclusion: The present study showed a 76% positive yield for DIF study in patients with LCV when biopsies were performed within one week of onset. There was a tendency for the percentage of positive DIF results to decline when the biopsy was performed on lesions that were more than 1 day old.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=2942594556&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/21663
ISSN: 01252208
Appears in Collections:Scopus 2001-2005

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