Korean Diabetes Journal 2004;28(5):452-457.
Published online October 1, 2004.
A Case of Necrobiosis Lipoidica at the Insulin Injection Site in a Patient with Type 2 Diabetes Mellitus.
Woo Tae Kim, Tae Hoon Kim, Se Min Lee, Kang Hyun Choi, Seung Hyun Ko, Yu Bai Ahn, Ki Ho Song, Ho Young Son, Kyung Moon Kim, Si Young Kim
1Division of Endocrinology and Metabolism, Department of Internal Medicine, The Catholic University of Korea, Seoul, Korea.
2Division of Endocrinology and Metabolism, Department of Dermatology, The Catholic University of Korea, Seoul, Korea.
Nearly one third of patients with diabetes mellitus have some kinds of dermatologic complication. Necrobiosis lipoidica (NL) is a rare degenerative disease of the collagen in the dermis occurring in 0.3~0.7% of the diabetic population. This is a dermatologic condition presenting plaques that have an erythematous, violaceous border and yellowish atrophic center with telangiectasis on its surface. One third of these lesions may progress to ulcer if exposed to any trauma. There is some controversy regarding the degree of association between NL and diabetes mellitus. Necrobiosis lipoidica is commonly seen in patients with type 1 diabetes, but 7~30% of diabetic patients with NL have type 2 diabetes. We report a case of 54 year-old woman with 25 years of diabetic history. Her skin lesion was oval or irregular indurated plaques with central atrophy occurring both arm, lower abdomen and both anterior thigh, especially at insulin injecton site. We focused glycemic control as a treatment and used antiplatelet agents such as aspirin and cilostazol on the basis of microangiopathic athophysiology, combined with antibiotics. We need to inspect more closely any of skin lesions in diabetic patients, thus misdiagnosis and improper treatment should be reduced.
Key Words: Necrobiosis lipoidica

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