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However, this definition is inconsistently applied in the medical literature, and some refer to any oral white patch as "leukoplakia". [3] The term has been incorrectly used for white patches of any cause (rather than specifically referring to idiopathic white patches) and also to refer only to white patches which have a risk of cancerous ...
Medical eponyms are terms used in medicine which are named after people (and occasionally places or things). In 1975, the Canadian National Institutes of Health held ...
Long term follow-up is usually carried out. [1] Some recommend biopsy if the lesions persists more than 6 weeks after giving up smokeless tobacco use, [7] or if the lesion undergoes a change in appearance (e.g. ulceration, thickening, color changes, especially to speckled white and red or entirely red). [8]
Within the latter type, the hairs occur in structures called pilosebaceous units, each with hair follicle, sebaceous gland, and associated arrector pili muscle. [4] In the embryo , the epidermis, hair, and glands form from the ectoderm , which is chemically influenced by the underlying mesoderm that forms the dermis and subcutaneous tissues.
Hairy leukoplakia is a white patch on the side of the tongue with a corrugated or hairy appearance. It is caused by Epstein-Barr virus (EBV) and occurs usually in persons who are immunocompromised , especially those with human immunodeficiency virus infection/ acquired immunodeficiency syndrome (HIV/AIDS).
Examples are "an excessive formation of keratin (e.g., as seen in leukoplakia)" [12] and "an increase in the thickness of the keratin layer of the epithelium, or the presence of such a layer in a site where none would normally be expected." [13]
Examples of epithelial dysplasia include cervical intraepithelial neoplasia – a disorder commonly detected by an abnormal pap smear) consisting of an increased population of immature (basal-like) cells which are restricted to the mucosal surface, and have not invaded through the basement membrane to the deeper soft tissues.
Oral cancer, also known as oral cavity cancer, tongue cancer or mouth cancer, is a cancer of the lining of the lips, mouth, or upper throat. [6] In the mouth, it most commonly starts as a painless red or white patch, that thickens, gets ulcerated and continues to grow.