<\/span><\/h2>\nLichenoid keratosis is usually a small, solitary, inflammatory swelling. taint<\/span> or thin pigmented<\/span> license plate<\/span>. Multiple eruptive lichenoid keratosis<\/span> in sites exposed to the sun they are also described. Its color varies from an initial reddish brown to a purple\/grayish brown like the injury<\/span> resolves several weeks or months later.<\/p>\nLichenoid keratosis is also known as benign<\/span> lichenoid keratosis, solitary lichen planus, lichen planus type keratosis and involuntary lichenoid plaque. They are one of the causes of atypical<\/span> solar lentigo<\/span>.<\/p>\n<\/span>Who gets lichenoid keratosis?<\/span><\/h2>\nLichenoid keratosis usually develops in light-skinned patients aged 30 to 80 years. It is twice as common in women as in men. It is most commonly seen in Caucasians and rarely affects Asians, African Americans, or Hispanics.<\/p>\n
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<\/span>What causes lichenoid keratosis?<\/span><\/h2>\nLichenoid keratosis is a inflammatory<\/span> reaction that arises in a retreat of the existing solar lentigo or seborrheic<\/span> keratosis It is not known what causes the reaction, but triggers include mild trauma<\/span> such as friction, drugs, dermatitis<\/span>and sun exposure.<\/p>\n\n<\/span>Lichenoid keratosis<\/span><\/h5>\n<\/section>\n\n\n
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Lichenoid keratosis<\/p>\n
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Lichenoid keratosis<\/p>\n
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Lichenoid keratosis<\/p>\n<\/p><\/div>\n<\/section>\n
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<\/span>How is lichenoid keratosis diagnosed?<\/span><\/h2>\nLichenoid keratosis is diagnosed by its clinical and dermoscopic appearance, which reveals uniform clusters of gray dots and, depending on the stage of the lesion, may show signs of an original pre-existing lentigo or seborrheic keratosis. Over time, signs of the original injury disappear. Later, the gray spots also disappear as the lesion resolves to reveal normal skin.<\/p>\n\n<\/span>Dermatoscopy of lichenoid keratosis<\/span><\/h5>\n<\/section>\n\n\n
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Lichenoid keratosis<\/p>\n
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Lichenoid keratosis<\/p>\n
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Lichenoid keratosis<\/p>\n<\/p><\/div>\n<\/section>\n
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Because clinical examination and dermoscopy may not be able to differentiate between lichenoid keratosis and other forms of isolation. erythematous<\/span> injuries that could be melanocytic<\/span>, benign non-melanocytic, evil one<\/span> or inflammatory, a blow or shaving the skin biopsy<\/span> it can be necessary<\/p>\nHistopathology<\/span> It resembles that of lichen planus or lichenoid dope eruption<\/span>, with some slight differences. Remnants of the original solar lentigo or seborrheic keratosis may be evident.<\/p>\n<\/span>What are the clinical characteristics of lichenoid keratosis?<\/span><\/h2>\nThe clinical characteristics of lichenoid keratosis vary depending on the inflammatory stage of the lesion.<\/p>\n
\n\n\nClassic, bullous<\/span> or atypical subtype<\/th>\n<\/tr>\n\n| Clinical features<\/td>\n | \n\n- \nAcute<\/span> rapidly developing lesion (present for <3 months)<\/li>\n
- Erythematous or pink papule<\/span> or plate<\/li>\n
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Dermatoscopy can show traces of pigment<\/span> red, subtle brown spots, groups of more stippled, irregular gray spots linear<\/span> and other telangiectatic forms blood vessels<\/span>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n\n| Histopathology<\/td>\n | \n\n- Classic Variant Shows epidermal<\/span> acanthosis<\/span> with a band-shaped lichenoid lymphocytic<\/span> infiltrate<\/span>. Presence of epidermis parakeratosis<\/span> distinguishes these lesions from typical lichen planus.<\/li>\n
- Bullous variant sample intraepidermal<\/span> or subepidermal bullous cavities with dense lymphocytic infiltrate and greater number of necrotic<\/span> basilar layer keratinocytes<\/span>.<\/li>\n
- The atypical variant shows similar histology<\/span> to classic type with extended CD-3 extended, CD-30 (+) lymphocytes<\/span> with hyperchromatic<\/span>irregular nuclei<\/span>.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
\n| Early or interface subtype<\/th>\n<\/tr>\n | \n| Clinical features<\/td>\n | \n\n- Subacute lesions present for 3 months to a year<\/li>\n
- Hyperpigmented dark red or brown erythematous lesion<\/li>\n
- Depending on the age of the lesion, dermoscopy may show features of solar lentigo or flat seborrheic keratosis with moth-eaten edges, fingerprints, milia<\/span>-like cysts, comedo<\/span>-like openings, smaller foci of melanophages<\/span> (gray dots).<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
\n| Histopathology<\/td>\n | \n\n- Individual lymphocytes aligned along the dermoepidermal junction without epidermal acanthosis and adjacent<\/span> lentigo<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
\nReturned late or atrophic<\/span> subtype<\/th>\n<\/tr>\n\n| Clinical features<\/td>\n | \n\n- The injuries have been present for more than a year.<\/li>\n
- Maybe violaceous<\/span> (violet color) papules<\/span> or irregularly distributed lesions with shades of brown or gray<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
\n| Histopathology<\/td>\n | \n\n- Epidermal atrophy<\/span> with papillary dermal<\/span> scarring, irregular lymphocytic infiltrators<\/span> and melanin<\/span> incontinence<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Other characteristics of lichenoid keratosis are:<\/p>\n \n- A solitary lesion is present in 90% cases of lichenoid keratosis, and other patients have few or many lesions.<\/li>\n
- It is most commonly found on the upper trunk, followed by the distal<\/span> upper extremities, and less frequently in the head and neck.<\/li>\n
- The size varies from a few millimeters to a centimeter or more in size.<\/li>\n
- The skin surface may be smooth, scaly<\/span> or warty<\/span>.<\/li>\n
- The lesion often has no symptoms or may be itchy or have a mild stinging sensation.<\/li>\n<\/ul>\n
\n \n \n \n<\/div><\/div><\/div><\/div>\n <\/span>What is the management of lichenoid keratosis?<\/span><\/h2>\nLichenoid keratosis is harmless and resolves spontaneously. If there is any doubt about the diagnosis, digital dermoscopic images can be taken and used in follow-up a few months later.<\/p>\n Lichenoid keratosis can be removed if desired using liquid nitrogen, electrosurgery, or curettage.<\/p>\n Multiple eruptive lichenoid keratoses can be effectively treated with oral administration retinoid<\/span>acitretin<\/p>\nTo date there have been no reports of lichenoid keratosis developing into malignant skin tumors.<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":" Que es liquenoide queratosis? La queratosis liquenoide suele ser una inflamaci\u00f3n peque\u00f1a, solitaria e inflamatoria. m\u00e1cula o delgada pigmentado placa. Lichenoide eruptivo m\u00faltiple queratosis en sitios expuestos al sol tambi\u00e9n…<\/p>","protected":false},"author":8,"featured_media":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"categories":[204],"tags":[],"class_list":["post-16638","wiki","type-wiki","status-publish","format-standard","category-glosario-definiciones"],"_links":{"self":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/wiki\/16638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/types\/wiki"}],"author":[{"embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/comments?post=16638"}],"version-history":[{"count":0,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/wiki\/16638\/revisions"}],"wp:attachment":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/media?parent=16638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/categories?post=16638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/tags?post=16638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} | | | | | | | |