Leukoplakia

leukoplakia

[‚lü·kō′plā·kē·ə] (medicine) Formation of thickened white patches on mucous membranes, particularly of the mouth and vulva.

Leukoplakia

milky-white spots (radius, to 0.5 cm) on the mucous membranes near the skin (for example, on the lower lip) and on the cheeks, tongue, bottom of the mouth, esophagus, cervix uteri, vagina, and urinary bladder.

Leukoplakia is one of the precancerous diseases. Smoking, advanced tooth decay, excessive consumption of alcohol or spices, certain inflammations of the oral cavity, avitaminosis A or B complex, and poorly fitting metal dental bridges, fillings, and crowns may give rise to leukoplakia. The disease occurs in two forms. In simple leukoplakia, the mucous membrane is smooth; its surface resembles mosaic or parquetry. This may be complicated by fissures or erosions. In verrucose leukoplakia, the mucosa is raised and the color varies from pearly to chalky. Patients complain of sensations of petrifaction, burning, and tenderness. Treatment is by surgical removal, electrocoagulation, or radiation therapy.

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.

leu·ko·pla·ki·a

(lū'kō-plā'kē-ă), A white patch of oral or female genital mucous membrane that cannot be wiped off and cannot be diagnosed clinically as any specific disease entity; in current usage, a clinical term without histologic connotation. Synonym(s): smoker's patches [leuko- + G. plax, plate]

leukoplakia

(lo͞o′kə-plā′kē-ə) also

leucoplakia

(lo͞o′kə-plā′kē-ə)n. An abnormal condition characterized by white spots or patches on mucous membranes, especially of the mouth and vulva. Also called leukoplasia.

leukoplakia (vulvar)

Chronic vulvar dystrophy, see there.
The term leukoplakia continues to be widely used (incorrectly) in the working gynaecological parlance; the error lies in that the term leukoplakia merely refers to the macroscopic appearance of white patches in the postmenopausal vulva, which most commonly correspond to hyper- or parakeratosis and far less commonly to carcinoma in situ or Paget's disease. The portent of vulvar leukoplakia is thus in sharp contrast to oral leukoplakia, which is generally regarded as a pre-malignant lesion.

leukoplakia

A potentially precancerous white patch or plaque on a mucosa characterized by epithelial hyperplasia and hyperkeratosis, often caused by chronic irritation; leukoplakia–LP affects the mucosa of oral cavity, upper respiratory tract, vulva, uterine cervix, renal pelvis, urinary bladder; in each site, the significance differs ENT Smoker's keratosis A white plaque or patch on the oral mucosa. See Hairy leukoplakia Ob/Gyn A white plaque or patch on the vaginal mucosa, seen without magnification or acetic acid, and often elevated from surrounding surfaces with a sharp border and Lugol's non-staining Histology Hyperkeratosis, possibly epithelial proliferation. See Speckled leukoplakia.

leu·ko·pla·ki·a

(lū'kō-plā'kē-ă) A white patch of oral mucous membrane that cannot be wiped off and cannot be diagnosed clinically; the spots are smooth, irregular in size and shape, hard, and occasionally fissured. Often associated with pipe smoking. Biopsy may show malignant or premalignant changes.
Synonym(s): leucoplakia. [leuko- + G. plax, plate]

leukoplakia

(loo?ko-pla'ke-a) [ leuko- + Gr. plax, plate + -ia]

LEUKOPLAKIAFormation of white spots or patches on the mucous membrane of the tongue or cheek. The spots are smooth, irregular in size and shape, hard, and occasionally fissured. The lesions may become malignant. Synonym: leukokoria; leukoplasia; smoker's tongue See: illustration

leukoplakia buccalis

Leukoplakia of the mucosa of the cheek.

ORAL HAIRY LEUKOPLAKIA

oral hairy leukoplakia

Leukoplakia of the tongue. It is typically found in immunocompromised patients is a result of Epstein-Barr virus infection. illustration

leukoplakia vulvae

Lichen sclerosis et atrophicus.

leukoplakia

A thickened white patch occurring on a mucous membrane, especially inside the mouth, on the lips or on the female genitalia. Leukoplakia is a response to long-term irritation and is a PRECANCEROUS condition that should never be ignored.

leu·ko·pla·ki·a

(lū'kō-plā'kē-ă) White patch of oral or female genital mucous membrane that cannot be wiped off and cannot be diagnosed clinically as any specific disease entity; in current usage, no histologic connotation.
Synonym(s): leucoplakia. [leuko- + G. plax, plate]

单词	leukoplakia
释义	leukoplakia leu·ko·pla·ki·a L0135450 (lo͞o′kə-plā′kē-ə) also leu·co·pla·ki·a (lo͞o′kə-plā′kē-ə)n. An abnormal condition characterized by white spots or patches on mucous membranes, especially of the mouth and vulva. Also called leukoplasia. [New Latin : leuko- + Greek plax, plak-, flat area; see plāk- in Indo-European roots.] leukoplakia or leucoplakia n (Pathology) pathol white patches or plaques occurring on mucous membranes, esp of the mouth or vulva leu•ko•pla•ki•a or leu•co•pla•ki•a (ˌlu kəˈpleɪ ki ə) n. a condition marked by one or more white patches on a mucous membrane, as of the tongue or cheek, usu. benign. [1880–85; < Greek leuko- leuko- + plak-, s. of pláx flat surface, taken as “tongue” + -ia -ia; leukoplasia for earlier leucoplacia, as if formed with -plasia] Translations Leukoplakia leukoplakia [‚lü·kō′plā·kē·ə] (medicine) Formation of thickened white patches on mucous membranes, particularly of the mouth and vulva. Leukoplakia milky-white spots (radius, to 0.5 cm) on the mucous membranes near the skin (for example, on the lower lip) and on the cheeks, tongue, bottom of the mouth, esophagus, cervix uteri, vagina, and urinary bladder. Leukoplakia is one of the precancerous diseases. Smoking, advanced tooth decay, excessive consumption of alcohol or spices, certain inflammations of the oral cavity, avitaminosis A or B complex, and poorly fitting metal dental bridges, fillings, and crowns may give rise to leukoplakia. The disease occurs in two forms. In simple leukoplakia, the mucous membrane is smooth; its surface resembles mosaic or parquetry. This may be complicated by fissures or erosions. In verrucose leukoplakia, the mucosa is raised and the color varies from pearly to chalky. Patients complain of sensations of petrifaction, burning, and tenderness. Treatment is by surgical removal, electrocoagulation, or radiation therapy. 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. leu·ko·pla·ki·a (lū'kō-plā'kē-ă), A white patch of oral or female genital mucous membrane that cannot be wiped off and cannot be diagnosed clinically as any specific disease entity; in current usage, a clinical term without histologic connotation. Synonym(s): smoker's patches [leuko- + G. plax, plate] leukoplakia (lo͞o′kə-plā′kē-ə) also leucoplakia (lo͞o′kə-plā′kē-ə)n. An abnormal condition characterized by white spots or patches on mucous membranes, especially of the mouth and vulva. Also called leukoplasia. leukoplakia (vulvar) Chronic vulvar dystrophy, see there. The term leukoplakia continues to be widely used (incorrectly) in the working gynaecological parlance; the error lies in that the term leukoplakia merely refers to the macroscopic appearance of white patches in the postmenopausal vulva, which most commonly correspond to hyper- or parakeratosis and far less commonly to carcinoma in situ or Paget's disease. The portent of vulvar leukoplakia is thus in sharp contrast to oral leukoplakia, which is generally regarded as a pre-malignant lesion. leukoplakia A potentially precancerous white patch or plaque on a mucosa characterized by epithelial hyperplasia and hyperkeratosis, often caused by chronic irritation; leukoplakia–LP affects the mucosa of oral cavity, upper respiratory tract, vulva, uterine cervix, renal pelvis, urinary bladder; in each site, the significance differs ENT Smoker's keratosis A white plaque or patch on the oral mucosa. See Hairy leukoplakia Ob/Gyn A white plaque or patch on the vaginal mucosa, seen without magnification or acetic acid, and often elevated from surrounding surfaces with a sharp border and Lugol's non-staining Histology Hyperkeratosis, possibly epithelial proliferation. See Speckled leukoplakia. leu·ko·pla·ki·a (lū'kō-plā'kē-ă) A white patch of oral mucous membrane that cannot be wiped off and cannot be diagnosed clinically; the spots are smooth, irregular in size and shape, hard, and occasionally fissured. Often associated with pipe smoking. Biopsy may show malignant or premalignant changes. Synonym(s): leucoplakia. [leuko- + G. plax, plate] leukoplakia (loo?ko-pla'ke-a) [ leuko- + Gr. plax, plate + -ia] LEUKOPLAKIAFormation of white spots or patches on the mucous membrane of the tongue or cheek. The spots are smooth, irregular in size and shape, hard, and occasionally fissured. The lesions may become malignant. Synonym: leukokoria; leukoplasia; smoker's tongue See: illustration leukoplakia buccalis Leukoplakia of the mucosa of the cheek.ORAL HAIRY LEUKOPLAKIA oral hairy leukoplakia Leukoplakia of the tongue. It is typically found in immunocompromised patients is a result of Epstein-Barr virus infection. illustration leukoplakia vulvae Lichen sclerosis et atrophicus. leukoplakia A thickened white patch occurring on a mucous membrane, especially inside the mouth, on the lips or on the female genitalia. Leukoplakia is a response to long-term irritation and is a PRECANCEROUS condition that should never be ignored. leu·ko·pla·ki·a (lū'kō-plā'kē-ă) White patch of oral or female genital mucous membrane that cannot be wiped off and cannot be diagnosed clinically as any specific disease entity; in current usage, no histologic connotation. Synonym(s): leucoplakia. [leuko- + G. plax, plate]
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leukoplakia

leu·ko·pla·ki·a

leukoplakia

leucoplakia

leu•ko•pla•ki•a

or leu•co•pla•ki•a

Leukoplakia

leukoplakia

Leukoplakia

leukoplakia

leukoplakia

leu·ko·pla·ki·a

leukoplakia

leucoplakia

leukoplakia (vulvar)

leukoplakia

leu·ko·pla·ki·a

leukoplakia

leukoplakia buccalis

oral hairy leukoplakia

leukoplakia vulvae

leukoplakia

leu·ko·pla·ki·a