Term
|
Definition
| the destruction of tissue, often by cautery, cryotherapy or laser |
|
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Term
|
Definition
| a localized collection of pus |
|
|
Term
|
Definition
| a histological term referring to 'floating' skin cells that have lost normal cell-to-cell connections |
|
|
Term
|
Definition
| a benign tumour of skin in which the epidermis is thickened |
|
|
Term
|
Definition
| a histological term referring to thickening of the epidermis |
|
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Term
|
Definition
| complete loss of skin colour. Also called leukoderma |
|
|
Term
|
Definition
| a lesion or eruption that resembles acne |
|
|
Term
|
Definition
| a fibroepithelial polyp or skin tag |
|
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Term
|
Definition
| a scaly spot caused by chronic solar exposure |
|
|
Term
|
Definition
| the union of two surfaces, such as the parts of a wound being joined together |
|
|
Term
|
Definition
| refers to an epidermal structure, the hair follicle and its parts, or the sweat gland and duct. |
|
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Term
|
Definition
| a small dark red or purple raised spot. It may also have a rough scaly surface |
|
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Term
|
Definition
| a benign subcutaneous tumour composed of fat and vessels |
|
|
Term
|
Definition
| a benign (non-cancerous) overgrowth of blood vessels in the skin |
|
|
Term
|
Definition
| refers to tissue that has failed to grow |
|
|
Term
|
Definition
| refers to the wasting of an organ or tissue |
|
|
Term
|
Definition
| refers to anything at or forming a base |
|
|
Term
|
Definition
| refer to seborrheic keratoses, solar lentigines, lichen planus-like keratoses or a combination of these lesions |
|
|
Term
|
Definition
| the act of removing normal skin colour, erythema or telangiectasis by pressure |
|
|
Term
|
Definition
| large blisters, circumscribed lesions more than 1 cm in diameter that contain liquid (clear, serous or haemorrhagic) |
|
|
Term
|
Definition
| being characterised by bullae |
|
|
Term
|
Definition
| a yellow or orange skin colouration due to excessive ingestion of yellow/orange coloured vegetables and fruit |
|
|
Term
|
Definition
| refers to death of tissue in which the dried tissue is cheese-like |
|
|
Term
|
Definition
| the structural protein making up the bulk of the dermis |
|
|
Term
|
Definition
| refers to a tissue containing collagen |
|
|
Term
|
Definition
| a dilated or widened hair follicle (pore) in the skin. It can be open (a blackhead) or closed by skin (a whitehead) |
|
|
Term
|
Definition
| an epidermal cell within the stratum corneum |
|
|
Term
|
Definition
|
|
Term
|
Definition
| the main part of hair; surrounds the medulla |
|
|
Term
|
Definition
| hard, outer layer of hair |
|
|
Term
|
Definition
| related to a cyst, a papule or nodule containing fluid or semi-fluid material |
|
|
Term
|
Definition
| a keratin protein found in the cytoplasm of epithelial tissue |
|
|
Term
|
Definition
| the removal of infected or dead tissue to aid the healing process |
|
|
Term
|
Definition
| a clear boundary between two areas |
|
|
Term
|
Definition
| the loss of, or removal of, skin pigment |
|
|
Term
|
Definition
| has several meanings, including inflammation of the skin. It is often used in the context of a kind of eczema |
|
|
Term
|
Definition
| the study of skin, hair and nails |
|
|
Term
|
Definition
| the middle connective tissue layer of skin, (mesoderm) underneath the epidermis and above the subcutaneous layer |
|
|
Term
|
Definition
| the term given to skin coming off in scales or peeling |
|
|
Term
|
Definition
| refers to the degree of specialisation of a cell. In a tumour, these cells resemble normal cells from that tissue. |
|
|
Term
|
Definition
|
|
Term
|
Definition
| separated from other lesions by normal skin |
|
|
Term
|
Definition
| abnormal development of a cell or tissue |
|
|
Term
|
Definition
| discolouration due to bleeding under the skin (a bruise) |
|
|
Term
|
Definition
| a kind of sweat gland most prevalent in the forehead, palms, and soles of the feet |
|
|
Term
|
Definition
| an inflammatory condition of the skin characterised by redness, itching, and oozing vesicular acute lesions and dry, thickened chronic lesions |
|
|
Term
|
Definition
|
|
Term
|
Definition
| elastic skin fiber housed in the dermis |
|
|
Term
|
Definition
| refers to the dissolution of elastic tissue |
|
|
Term
|
Definition
| in medicine, refers to something that is enclosed |
|
|
Term
|
Definition
| the tissues on the outer layer of the body, such as skin, and lining the gut and other hollow structures |
|
|
Term
|
Definition
| a tissue composed of packed cells that line a body surface internally (e.g. mouth) or externally (e.g. skin) |
|
|
Term
|
Definition
| a sore due to superficial or partial destruction of surface tissue such as the skin |
|
|
Term
|
Definition
| the name given to red skin due to increased blood supply and may be applied to any red coloured dermatosis |
|
|
Term
|
Definition
| a full-thickness scab that develops in a healing wound, for example after a thermal burn or a cauterisation |
|
|
Term
|
Definition
| a widespread rash that is usually accompanied by systemic symptoms such as fever, malaise and headache. It is caused by infection or drug |
|
|
Term
|
Definition
| an inactive substance in a medicine or cream, for example, its vehicle, colouring agent, or preservative |
|
|
Term
|
Definition
| the complete surgical removal of tissue for diagnosis or treatment |
|
|
Term
|
Definition
| a loss of the epidermis and a portion of the dermis due to scratching or an exogenous injury |
|
|
Term
|
Definition
| a tumour formed by fibrous tissue and epidermal components |
|
|
Term
|
Definition
| a benign tumour, consisting mainly of fibrous tissue |
|
|
Term
|
Definition
| a protein that binds to collagen and fibrin and acts as a connector and an anchor between cell membranes |
|
|
Term
|
Definition
| the process by which the body lays down collagen or fibrous tissue |
|
|
Term
|
Definition
|
|
Term
|
Definition
| splits, cracks, erosions or narrow ulcerations of the skin |
|
|
Term
|
Definition
| bright red cutaneous lesions, and is often used when referring to a red face |
|
|
Term
|
Definition
| small channel in the skin from which a hair grows |
|
|
Term
|
Definition
| decomposition of body tissue |
|
|
Term
|
Definition
| lesions distributed randomly over most of the body surface area (generalized/widespread) or within an anatomical region |
|
|
Term
|
Definition
| congenital diseases of the skin, especially when these diseases are genetically determined |
|
|
Term
|
Definition
granular layer of the epidermis
: characterised by flattened cells filled with dark granules containing keratohyaline protein |
|
|
Term
|
Definition
| a mass of new capillaries and fibrous tissue in a healing wound |
|
|
Term
|
Definition
| a benign (non-cancerous) overgrowth of blood vessels in the skin |
|
|
Term
|
Definition
| a mass resembling a tumour that represents the irregular development of tissue natural to a part or organ rather than a true tumour |
|
|
Term
|
Definition
| horny layer of the epidermis: consists of stacks of dead cells without nuclei make up the dry or keratinised stratum corneum |
|
|
Term
|
Definition
| an ingredient in a barrier cream that increases the skin’s ability to hold water, such as glycerine, sorbitol, urea, seaweed extract, hyaluronic acid and alpha hydroxy acids |
|
|
Term
|
Definition
| in dermatopathology, refers to the degeneration of dermis to form a glassy, translucent proteinaceous material |
|
|
Term
|
Definition
| refers to excessive pigment |
|
|
Term
|
Definition
| thickening of the stratum corneum, the outermost layer of the skin (scaling) |
|
|
Term
|
Definition
| darkened skin compared to normal |
|
|
Term
|
Definition
| refers to skin colour that is paler than normal |
|
|
Term
|
Definition
| a skin disorder characterised by rough, thick, and scaly skin — also called alligator, collodion, crocodile, fish and porcupine skin |
|
|
Term
|
Definition
| refers to tumour cells confined to their site of origin, in a pre-invasive phase of growth |
|
|
Term
|
Definition
| the procedure by which a selected portion of a lesion is surgically removed from a patient for evaluation by a pathologist |
|
|
Term
|
Definition
| describes a tumour or condition that is slow to develop, progress, or heal |
|
|
Term
|
Definition
| describes skin that feels hard and thickened |
|
|
Term
|
Definition
| to enter, permeate, or pass through a substance or area |
|
|
Term
|
Definition
| refers to an abnormal accumulation of cells in tissue such as the skin |
|
|
Term
|
Definition
| in the skin is its response to injury or disease, recognised by redness, often accompanied by swelling, heat and pain and/or itch |
|
|
Term
|
Definition
| in dermatology, the superficial part of the hair follicle above the level of level of the opening of the sebaceous gland |
|
|
Term
|
Definition
| inflammation at the site of a recent (or uncommonly, old) injection. It may be painful or itchy, red, swollen or blistered for hours or days |
|
|
Term
|
Definition
| a histological term referring to mild lichenoid-like reaction in the interface between epidermis and dermis |
|
|
Term
|
Definition
| used to describe a finger or toe joint |
|
|
Term
|
Definition
| refers to a body site where two areas of skin rub or touch, such as the armpit or groin |
|
|
Term
|
Definition
| in dermatology, this means within the horny, outer layer of the skin |
|
|
Term
|
Definition
| refers to anything within the dermis |
|
|
Term
|
Definition
| refers to concentric red rings, also called target lesion or bull's eye appearance |
|
|
Term
|
Definition
| a substance that irritates the skin causing dermatitis and may include exposure to water, detergents, solvents, harsh fibers and friction |
|
|
Term
|
Definition
| insufficient blood supply causing lack of oxygen to tissues |
|
|
Term
| isomorphic or Koebner phenomenon |
|
Definition
| refers to the tendency of several skin conditions to affect areas subjected to injury |
|
|
Term
|
Definition
| condition that presents as yellowing of the skin and the whites of the eye and is due to a buildup of bile pigments in the blood |
|
|
Term
|
Definition
| tough protein substance in hair and nails |
|
|
Term
|
Definition
| the process of nail formation |
|
|
Term
|
Definition
| skin cell that produces the protein keratin |
|
|
Term
|
Definition
| describes thickening of the epidermal keratin of the skin of the palms and soles |
|
|
Term
|
Definition
|
|
Term
|
Definition
| refers to the Koebner phenomenon, which is the appearance of new lesions of a skin disease, such as psoriasis, at the site of a trauma |
|
|
Term
|
Definition
| describes a hollow cell. It is a squamous cell that has been infected with the human papillomavirus |
|
|
Term
|
Definition
| cells found in skin that help protect the body against infection |
|
|
Term
|
Definition
| an instrument that produces electromagnetic radiation such as visible light |
|
|
Term
|
Definition
| a well-defined brown mark arising in normal skin. There are several variants |
|
|
Term
|
Definition
| caused by chronic rubbing, which results in palpably thickened skin with increased skin markings and lichenoid scale |
|
|
Term
|
Definition
| relates to livedo, a patchy bluish discolouration of the skin |
|
|
Term
|
Definition
| whitish crescent-shaped area of the nail |
|
|
Term
|
Definition
|
|
Term
|
Definition
| a patch of skin that is altered in colour but is not elevated |
|
|
Term
| maculopapular eruptions on the skin |
|
Definition
| both macules (discoloured flat marks) and papules (firm bumps) |
|
|
Term
|
Definition
| In dermatology, refers to the edge of a lesion or body part |
|
|
Term
|
Definition
|
|
Term
| median canaliform dystrophy |
|
Definition
| results in a longitudinal groove in a nail plate |
|
|
Term
|
Definition
|
|
Term
|
Definition
| black or dark brown coloring found in the skin and hair |
|
|
Term
|
Definition
| an epidermal cell that produces melanin |
|
|
Term
|
Definition
| a localised area of pigmented skin |
|
|
Term
|
Definition
| a cancerous growth of pigment cells, melanocytes |
|
|
Term
|
Definition
| sensory cells found in the epidermis. Their exact function is uncertain |
|
|
Term
|
Definition
|
|
Term
|
Definition
| small white papules formed by keratin trapped in the superficial layers of the skin |
|
|
Term
|
Definition
| refers to the skin and mucous membranes |
|
|
Term
|
Definition
| membrane which lines a cavity and produces mucus |
|
|
Term
|
Definition
| composed of horny cells containing keratin and is produced by nail matrix |
|
|
Term
|
Definition
| an acronym for nonsteroidal anti-inflammatory drug |
|
|
Term
|
Definition
| a histological term referring to accumulation of mucopolyusaccharides in dermal collagen that alters its appearance |
|
|
Term
|
Definition
| relating to or affecting the skin and nerves |
|
|
Term
|
Definition
| congenital or acquired growths or pigmented blemishes on the skin; birthmarks or moles |
|
|
Term
|
Definition
| positive when slight rubbing of the skin results in exfoliation of the skin's outermost layer |
|
|
Term
|
Definition
| identified by the presence of swollen, circumscribed masses of tissues that appear on the skin |
|
|
Term
|
Definition
| an elevated, solid, palpable lesion > 1 cm usually located primarily in the dermis and/or subcutis (deeper layers of the skin) |
|
|
Term
|
Definition
|
|
Term
|
Definition
| tissue swelling in which pressure on the skin does not result in a depression. It is often due to lymphoedema |
|
|
Term
|
Definition
| round, coin-shaped lesions, also known as discoid |
|
|
Term
|
Definition
|
|
Term
|
Definition
| used to describe a medicine or treatment that can be purchased without a doctor's prescription |
|
|
Term
|
Definition
| a descriptive term in histology meaning the abnormal finding of precancerous or cancerous cells in the upper epidermis |
|
|
Term
|
Definition
| one that affects the palms and the soles |
|
|
Term
|
Definition
| refers to something that can be touched or felt, such as a papule (but excludes colour change, such as a macule) |
|
|
Term
|
Definition
| area at the bottom of the follicle where hair growth takes place |
|
|
Term
|
Definition
| tiny projections on the surface of the dermis |
|
|
Term
|
Definition
| the upper portion of the dermis just beneath the epidermis |
|
|
Term
|
Definition
| type of benign tumour that arises in the epithelium (the skin and mucous membranes of the skin) |
|
|
Term
|
Definition
| refers to a condition characterised by papules (elevated, solid, palpable lesion ≤ 1 cm in diameter) |
|
|
Term
|
Definition
| an elevated, solid, palpable lesion that is ≤ 1 cm in diameter |
|
|
Term
|
Definition
| refers to the presence of papules and pustules |
|
|
Term
|
Definition
| condition that presents with scaly papules and plaques, such as psoriasis, pityriasis rosea, or lichen planus |
|
|
Term
|
Definition
| a lesion with papular and vesicular components |
|
|
Term
|
Definition
| abnormal stratum corneum, in which surface keratinised cells of the skin retain nuclei |
|
|
Term
|
Definition
| around the nail, and usually implies an inflammatory process |
|
|
Term
|
Definition
| refers to a large area of colour change, with smooth surface |
|
|
Term
|
Definition
| a stalk-like component of a lesion |
|
|
Term
|
Definition
| a lesion with a peduncle or on a stalk |
|
|
Term
|
Definition
| means around an adnexa (hair follicle or sweat gland/duct) |
|
|
Term
|
Definition
| located or occurring around a lesion |
|
|
Term
|
Definition
| being situated or occurring around a fingernail or toenail |
|
|
Term
|
Definition
| in biology, refers to how easily a substance can penetrate into tissue |
|
|
Term
|
Definition
| pinpoint (less than 3 mm), red, purple or brown non-blanchable spots — a form of purpura |
|
|
Term
|
Definition
| pinpoint (less than 3 mm), red, purple or brown non-blanchable spots — a form of purpura |
|
|
Term
|
Definition
| describes characteristic changes to skin caused by exposure to sunlight or artificial sources of ultraviolet radiation |
|
|
Term
|
Definition
| a substance that causes a reaction to sunlight after either topical contact or systemic exposure |
|
|
Term
|
Definition
| an eczematous reaction to a substance in the presence of light |
|
|
Term
|
Definition
| a type of reaction or treatment in which a therapeutic or toxic reaction is induced by a chemical in association with the delivery of light |
|
|
Term
|
Definition
| reacts abnormally on exposure to sunlight that does not affect others with a similar skin colour |
|
|
Term
|
Definition
| an increase in the reactivity of the skin to sunlight |
|
|
Term
|
Definition
| a technique where light from a laser heats up the target tissue to destroy it |
|
|
Term
|
Definition
| a sunburn-like reaction to a substance in the presence of light |
|
|
Term
|
Definition
| refers to the colour of the skin, which may be formed by melanin (black, brown, grey), carotenoids (orange), haem (blood) or exogenous materials such as tattoos |
|
|
Term
|
Definition
| contain hair and sebaceous glands (oil glands) |
|
|
Term
|
Definition
| a skin condition with a bran-like powdery scale |
|
|
Term
|
Definition
| circumscribed, palpable lesion more than 1 cm in diameter |
|
|
Term
|
Definition
| skin with a variegated appearance, usually mixed pallor, telangiectasia and pigmentation |
|
|
Term
|
Definition
| a patch of depigmentation in the hair. This usually occurs to a pathological condition |
|
|
Term
|
Definition
| means it has a non-geometric shape |
|
|
Term
|
Definition
| refers to something with multiple forms, such as a rash or a gene mutation |
|
|
Term
|
Definition
| granular immune cells with multilobed nuclei |
|
|
Term
|
Definition
| pigmented molecule with a flat ring of four linked heterocyclic groups, sometimes with a central metal atom |
|
|
Term
|
Definition
| a feature that arises after an inflammatory rash has resolved and may describe erythema or pigmentation |
|
|
Term
| precancerous or premalignant lesions |
|
Definition
| any lesions that tend to become cancerous. The term may be used to describe in-situ tumours |
|
|
Term
| stratum spinosum or spinous cell layer |
|
Definition
| prickle cell layer of the epidermis: is so-called because prominent adherence plates (desmosomes) look spiny |
|
|
Term
|
Definition
| a drug or chemical that promotes tissue inflammation |
|
|
Term
|
Definition
| the growth and reproduction of similar cells |
|
|
Term
|
Definition
|
|
Term
|
Definition
| a firm lesion that contains fluid or semi-fluid material. Unlike a cyst, it is not surrounded by a capsule |
|
|
Term
|
Definition
| a histological term referring to harmless thickening of all layers of the epidermis that resembles squamous cell carcinoma |
|
|
Term
|
Definition
| resembling psoriasis, a chronic skin disease characterised by circumscribed red patches covered with white scales |
|
|
Term
|
Definition
| relating to any disorder of the skin that has a psychological cause |
|
|
Term
|
Definition
| an incisional biopsy of tissue obtained using a biopsy punch tool |
|
|
Term
|
Definition
| bleeding into the skin. This may be as petechiae or ecchymoses |
|
|
Term
|
Definition
| a skin lesion that contains or is discharging pus |
|
|
Term
|
Definition
| a circumscribed lesion that contains pus |
|
|
Term
|
Definition
| describes a condition dominated by pustules |
|
|
Term
|
Definition
| prefix that refers to pus |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| a vasospastic response to cold in which fingers and/or toes turn white and numb, and are bluish on rewarming before returning to normal |
|
|
Term
|
Definition
| a network or net-like structure |
|
|
Term
|
Definition
| the lower portion of the dermis |
|
|
Term
|
Definition
| a compound derived from vitamin A, used in topical creams for the treatment of skin conditions |
|
|
Term
|
Definition
| a compound derived from vitamin A, used in topical creams and capsules for the treatment of skin conditions |
|
|
Term
|
Definition
| an undesirable wrinkle in the skin |
|
|
Term
|
Definition
| soft thickened bulb at the base of the hair embedded in the skin |
|
|
Term
|
Definition
| flakes of the horny epithelium |
|
|
Term
|
Definition
| a permanent mark due to the development of fibrous connective tissue after a full thickness tissue injury or surgical procedure |
|
|
Term
|
Definition
| hardened skin and occurs in several distinct diseases |
|
|
Term
|
Definition
| hardened scar-like or indurated tissue |
|
|
Term
|
Definition
| pertains to the glands which produce sebum and are most concentrated on scalp and face |
|
|
Term
|
Definition
| relating to seborrhea, where there is abnormally increased secretion and discharge of sebum |
|
|
Term
|
Definition
| oil that lubricates the skin and hair |
|
|
Term
|
Definition
| the part of the hair that projects from the surface of the skin |
|
|
Term
|
Definition
| an incisional or excisional biopsy of tissue obtained by a cut made parallel to the surface of the surrounding skin |
|
|
Term
|
Definition
| a histological term referring to intercellular swelling of the epidermis, which resembles a sponge |
|
|
Term
|
Definition
| flat epithelial cells found on the skin surface |
|
|
Term
|
Definition
| the surface horny layer consisting of stacks of dead cells without nuclei |
|
|
Term
| stratum spinosum or prickle cell layer of the epidermis |
|
Definition
| contains increasingly flat keratinocytes that arise as the epidermal cells mature and move upwards towards the skin surface |
|
|
Term
|
Definition
| a layer of fat under the skin |
|
|
Term
|
Definition
| any tissue underneath the skin |
|
|
Term
|
Definition
| underneath a toenail or a fingernail |
|
|
Term
|
Definition
|
|
Term
|
Definition
| used for a target lesion that is not caused by erythema multiforme and has multiple concentric rings |
|
|
Term
|
Definition
| resting phase of the hair cycle |
|
|
Term
|
Definition
| acute rash with fever, caused by infection or drug |
|
|
Term
|
Definition
|
|
Term
|
Definition
| a benign or malignant growth of tissue |
|
|
Term
|
Definition
| the full-thickness loss of the epidermis plus at least a portion of the dermis |
|
|
Term
|
Definition
| the full-thickness loss of the epidermis plus at least a portion of the dermis |
|
|
Term
|
Definition
| the medical term for the navel |
|
|
Term
|
Definition
| hives, a group of disorders in which there are wheals or superficial swellings of the skin |
|
|
Term
|
Definition
| condition is characterised by wheals |
|
|
Term
|
Definition
| short, fine and light-coloured hair found over most of the body |
|
|
Term
|
Definition
| small end of a vein that connects the veins to the capillaries |
|
|
Term
|
Definition
| wart-like, thickened and scaly |
|
|
Term
|
Definition
| a small blister, a circumscribed lesion ≤ 1 cm in diameter that contains liquid |
|
|
Term
|
Definition
| any disease characterised by the presence of vesicles and bullae |
|
|
Term
|
Definition
| refers to a violet or purple hue |
|
|
Term
|
Definition
| refers to a violet or purple hue |
|
|
Term
|
Definition
| A lesion with a clear border separating it from surrounding skin |
|
|
Term
|
Definition
| a transient elevation of the skin due to dermal oedema, often pale centrally with an erythematous rim and without surface change |
|
|
Term
|
Definition
| indicates urticaria or an urticaria-like condition |
|
|
Term
|
Definition
| emits long wavelength UVA used to examine the skin pigmentary changes and fluorescent infections |
|
|
Term
|
Definition
|
|
Term
|
Definition
| refers to abnormally dry skin |
|
|
Term
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Definition
| esions confined to one or more segments of skin innervated by a single spinal nerve (dermatomes) |
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