2009
DOI: 10.1111/j.1346-8138.2009.00612.x
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Venous insufficiency in patients with necrobiosis lipoidica

Abstract: The pretibial area is the most frequently affected site in necrobiosis lipoidica (NL), but proposed mechanisms of NL cannot fully explain this high frequency. Although a few case reports indicate NL patients are complicated with venous insufficiency, no accurate assessment of the relationship between these two conditions has been performed. By using color Doppler ultrasonographic screening of four NL patients for venous insufficiency, we detected venous insufficiency in at least one leg of each patient. NL les… Show more

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Cited by 13 publications
(13 citation statements)
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“…1 Other theories suggest that NL could be caused by collagen fiber abnormalities, 7 defective neutrophil migration, 8 and tissue damage secondary to venous insufficiency. 9 Although the incidence of NL is only 0.3%-1.2% in diabetic patients, 1,10 DM is the most common associated disease. In the longest NL series published in 1956 and 1966, 42% and 65% of patients had DM the before diagnosis of NL.…”
Section: Discussionmentioning
confidence: 99%
“…1 Other theories suggest that NL could be caused by collagen fiber abnormalities, 7 defective neutrophil migration, 8 and tissue damage secondary to venous insufficiency. 9 Although the incidence of NL is only 0.3%-1.2% in diabetic patients, 1,10 DM is the most common associated disease. In the longest NL series published in 1956 and 1966, 42% and 65% of patients had DM the before diagnosis of NL.…”
Section: Discussionmentioning
confidence: 99%
“…In the past years, more patients were successfully treated with topical tacrolimus as well (16,32). Compression therapy was performed on all of our patients to support ulcer healing, because previous reports have shown that chronic venous insufficiency, even if there are no clinical signs of stasis, can trigger tissue damage in the lower leg maintaining ulcerations caused by necrobiosis lipoidica (10). The fact that necrobiosis lipoidica almost exclusively appears on the lower legs and not in other body parts leads to the assumption that stasis plays a role in the formation of necrobiosis lipoidica plaques and ulcerations.…”
Section: Treatmentmentioning
confidence: 97%
“…There are reported associations with necrobiosis lipoidica and chronic venous insufficiency as well as hypercholesterolaemia. It has been discussed that both can trigger necrobiosis lipoidica and tissue damage (10,11).…”
Section: Pathophysiologymentioning
confidence: 99%
“…However, diabetic microangiopathy, immune-complex vasculitis, and collagen abnormalities are some potential underlying causes [1]. Nakajima et al [5] assert that both hyperlipidemia and venous reflux, in addition to other pathogenic factors, can trigger tissue damage in the lower legs and lead to the onset of NL. In constrast, Ngo et al [6] refute the hypothesis that NL is a manifestation of microvascular ischemic disease of the skin and conclude that the increased blood flow seen in NL lesions suggests an ongoing inflammatory process.…”
Section: Discussionmentioning
confidence: 99%