disease has location precancerous condition leukoplakia lesions, leukoplakic MONDO:0043243 NCIT:C3186 SCTID:274134003 leukoplakia UMLS:C0023531 MEDGEN:44133 leukoplakic lesion A white patch or plaque on a mucous membrane that cannot be characterized clinically or pathologically as any other disease. The diagnosis of leukoplakia is one of exclusion; other conditions such as candidiasis, lichen planus, leukoedema, etc., must be ruled out before a diagnosis of leukoplakia can be made. Leukoplakia may be a premalignant condition. lesion, leukoplakic leukoplakic lesions MESH:D007971 leukoplakias keratotic plaque leukokeratoses leukokeratosis mucosa