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A woman with swollen legs

Diabetic muscle infarction is a rare complication of diabetes mellitus. In one series of 56 patients with diabetic muscle infarction, 52% were women.1 The mean age at presentation was 415 years (range 19-81 years). 30 patients had type 1 diabetes mellitus. Patients with diabetic muscle infarction ha...

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Bibliographic Details
Published in:The Lancet (British edition) 2002-02, Vol.359 (9304), p.402-402
Main Authors: Chow, Chik Cheung, Mo, Ka Leung, Wong, Kin Shing
Format: Article
Language:English
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Summary:Diabetic muscle infarction is a rare complication of diabetes mellitus. In one series of 56 patients with diabetic muscle infarction, 52% were women.1 The mean age at presentation was 415 years (range 19-81 years). 30 patients had type 1 diabetes mellitus. Patients with diabetic muscle infarction have a long duration of diabetes mellitus (mean 15-2 years), poor diabetic control, and microvascular diabetic complications.2 The typical clinical presentation is painful muscle swelling, or a muscle mass. There is a predilection for quadriceps, hip adductors, and calf muscles.2 Bilateral limb involvement at the same time is rare. Creatine kinase concentration is reported to be normal in 75% of patients.3 The differential diagnosis includes abscess, cellulitis, muscle tumours, myositis, and osteomyelitis. Ultrasound imaging shows enlargement of the muscles. MRI is the investigation of choice.3 T2-- weighted imaging shows an increased signal in the intramuscular and perimuscular tissues secondary to increased water content from oedema and haemorrhage that accompany the infarction. If MRI cannot exclude a neoplastic process or infection, a core-needle biopsy of the muscle is indicated.4 The pathogenesis of diabetic muscle infarction is not well understood. Microvascular disease may be involved, since these patients usually have other microvascular complications.
ISSN:0140-6736
1474-547X
DOI:10.1016/S0140-6736(02)07602-X