| leg ulcer | Ulceration of the skin and underlying structures of the lower extremity. About 90% of the cases are due to venous insufficiency (varicose ulcer), 5% to arterial disease, and the remaining 5% to other causes. (12 Dec 1998) |
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| Lipschutz' ulcer | A simple acute ulceration of the vulva or lower vagina of nonvenereal origin. Synonym: ulcus vulvae acutum. (05 Mar 2000) |
| lupoid ulcer | An ulcer resembling that of cutaneous tuberculosis. (05 Mar 2000) |