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Autoimmun Rev. 2006 Feb;5(2):125-8. Epub 2005 Sep 13.

Digital ulcers in patients with systemic sclerosis.

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1
Stanford University School of Medicine, Department of Immunology and Rheumatology, 1000 Welch Road, Suite #203, Stanford, CA 94305, USA. shauwei@stanford.edu

Abstract

Digital ulcers (DU), defined as necrotic lesions located at distal digits or overlying bony prominences, occur in up to 50% of patients with limited or diffuse systemic sclerosis (SSc). These lesions are extremely painful and lead to substantial functional disability. The pathogenesis of DU differs depending on their location. DU located at distal aspects of digits are thought to be related to tissue ischemia from several processes, including vasospasm secondary to Raynaud's phenomenon, intimal fibro-proliferation, and thrombosis of digital arteries. DU located over bony prominences, such as the phalangeal joints and elbows, are thought to be due to repetitive microtrauma and difficulty healing due to atrophic, avascular tissue overlying the joints. Management of DU include non-pharmacologic and pharmacologic modalities. This review summarizes the current available and investigational therapies for the treatment and prevention of DU in patients with SSc.

PMID:
16431342
DOI:
10.1016/j.autrev.2005.08.004
[Indexed for MEDLINE]
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