leukokeratosis


Also found in: Dictionary, Encyclopedia.
Related to leukokeratosis: leukoplakia

leukoplakia

 [loo″ko-pla´ke-ah]
a disease marked by the development of white thickened patches on the mucous membranes of the cheeks (leukoplakia buccalis), gums, or tongue (leukoplakia lingualis); the patches sometimes form fissures and often become malignant. They may grow into larger patches or form ulcers. Those in the mouth may in time cause pain during swallowing of food or speaking. Leukoplakia affects mostly middle-aged to elderly men, often after prolonged irritation of the mouth from such varying factors as badly fitting dentures or immoderate use of tobacco.

Treatment is aimed at removing any possible cause of physical or chemical irritation; the patient should give up tobacco and possibly also alcohol and extremely hot food. Dental attention may be necessary if teeth are uneven or dentures do not fit properly. Surgical removal of the affected area is relatively simple and may be the best means of preventing further development of the condition.
oral hairy leukoplakia a white filiform to flat patch occurring on the tongue or, rarely, on the buccal mucosa, caused by infection with Epstein-Barr virus and associated with human immunodeficiency virus infection.
leukoplakia vul´vae the presence of hypertrophic grayish-white infiltrated patches on the vulvar mucosa; specific diagnosis is determined by biopsy.

leukokeratosis

(loo?ko-ker-a-to'sis) [? + keras, horn, + osis, condition] Leukoplakia.
References in periodicals archive ?
Sir James Paget of London wondered in 1851 about the cancer producing potential of pipe smokers palate or leukokeratosis and in 1870 he clearly implied that oral icthyosis (white keratotic plaque) was a significant precursor to lingual carcinoma.
Pachyonychia congenita is a rare type of palmoplantar keratoderma characterized by a triad of subungual hyperkeratosis, keratosis palmaris et plantaris and oral mucosal leukokeratosis.6 It is associated with other features like hyperkeratotic follicular papules, keratosis pilaris, hyperhidrosis of palms and soles, and hair abnormalities.
PC-1 or Jadassohn-Lewandowsky syndrome is the more common subtype characterized by hypertrophic nail dystrophy (100%), palmoplantar keratoderma (50-90%), keratotic follicular papules (37%), palmoplantar hyperhidrosis (20-75%), and oral or laryngeal leukokeratosis.9