_____ is a skin disorder characterized by abnormal light patches.

Is a skin disorder characterized by light abnormal parches it is caused by a burn scar inflammation or congenital disease that destroys his pigment producing cells. ... Is an acquired superficial thickened patch of the epidermis. Mole. Is a small brownish spot or blemish on the skin ranging in color from pale tan to brown or bluish black.

_____ is a skin disorder characterized by abnormal light patches.. Study with Quizlet and memorize flashcards containing terms like 1. What term is used to describe any mark, wound, or abnormality? a. lesion b. papule c. cyst d. skin tag, 2. What is leukoderma? a.flat, hairy spots on the skin b. light patches caused by destroyed pigment - producing cells c. brown or wine-colored discoloration d. thick scar resulting from …

Loss of pigmentation ; light, abnormal patches of depigmented skin ; congenital, acquired due to immunological and post-inflammatory causes. Vitiligo A pigmentation disease characterized by white irregular patches of skin that are totally lacking pigment.

a chronic inflammatory skin disorder of the sebaceous glands characterized by comedones and blemishes ... most common and least severe type of skin cancer; often characterized by light or pearly nodules; characteristics include sores, reddish patches, or a smooth growth with an elevated border. body dysmorphic disorder. a psychological …Study with Quizlet and memorize flashcards containing terms like 1. What term is used to describe any mark, wound, or abnormality? a. lesion b. papule c. cyst d. skin tag, 2. What is leukoderma? a.flat, hairy spots on the skin b. light patches caused by destroyed pigment - producing cells c. brown or wine-colored discoloration d. thick scar resulting from …Psoriasis is a chronic autoimmune condition that causes the rapid buildup of your skin cells. This buildup of cells causes scaling on your skin’s surface. Inflammation and redness around the... _____ is a skin disorder characterized by abnormal light patches. ... A noncontagious skin disease characterized by red patches covered with silver-white scales found ... Study with Quizlet and memorize flashcards containing terms like 1. What term is used to describe any mark, wound, or abnormality? a. lesion b. papule c. cyst d. skin tag, 2. What is leukoderma? a.flat, hairy spots on the skin b. light patches caused by destroyed pigment - producing cells c. brown or wine-colored discoloration d. thick scar resulting from excessive fibrous tissue, 3. What is ...

What is a skin disorder characterized by light abnormal patches, caused by a burn or congenital disease that destroys the pigment-producing cells? Stain Abnormal brown-colored of wine-colored discoloration with a circular and/or irregular shape?Macule. Flat spot or discoloration on the skin, such as a freckle or a red spot left after a pimple has healed. Tumor. An abnormal mass varying in size, shape, and color. Cyst. Closed, abnormally developed sac that contains fluid, pus, semifluid, or morbid matter above or below the skin. Scale.An abnormal cell mass varying in size, shape, and color is a: tumor. A closed, abnormally developed sac, containing fluid, semifluid, or morbid matter above or below the. skin is a. cyst. An accumulation of epidermal flakes, dry or greasy, is known as a: scale. A skin sore or abrasion produced by scratching or scraping is known as a:Study with Quizlet and memorize flashcards containing terms like A freckle is an example of a mark on the skin known as a ____. a. postule b. lesion c. cyst d. bulla, A blister containing watery fluid is a ___. a. sac b. freckle c. bulla d. papule, For which of the following kin lesions should the cosmetologist refer the client to his or her physician? a. bulla b. macule c. … what is a skin disorder characterized by light abnormal patches, caused by a burn or congenital disease that destroy the pigment producing cells? mole a small brownish spot or blemish on the skin, ranging in color from pale tan to brown or bluish black is a ______? _____is a skin disorder characterized by light abnormal patches; it is caused by a burn, scar or congenital disease that destroys the pigment producing cell. Lentigines ______________is the technical term for freckles.Leukoderma. A skin disorder characterized by abnormal light patches. Stain. An abnormal brown or wine-colored skin discoloration with a circular or irregular shape. Skin Tag. A small brown or flesh-colored outgrowth of the skin. Verruca. Hypertrophy of the papillae and epidermis, aka a wart. Basal Cell Carcinoma.

Abnormal pigmentation is a common symptom accompanying aging skin. The association between skin aging and skin pigmentation abnormalities can be attributed to certain inherited disorders characterized by premature aging and abnormal pigmentation in the skin and some therapeutic modalities effective for both.A skin disorder characterized by chronic inflammation of the sebaceous glands caused from retained secretions is: A) Telangiectasias. B) Anhidrosis. C) Rosacea. D) Acne. D) Acne. When bacteria cannot survive in the presence of oxygen, that bacteria is known as ______________. A) anesthetic bacteria.a _______ is a slightly raised mark on the skin formed after an injury or lesion of the skin has healed. impetigo. the contagious bacterial skin infection characterized by weeping lesion is. wheal. a _____ is an itchy, swollen lesion that lasts only a few hours. fissure.Xeroderma pigmentosum is a group of rare inherited skin disorders characterized by a heightened reaction to ultraviolet light (photosensitivity), skin discolorations, and the possible development of several types of eye disorders and skin cancers. ... shiny, firm masses of tissues (nodules); flat, scar-like lesions (plaques); or …Psoriasis is a chronic, recurring disease that causes one or more raised, red patches that have silvery scales and a distinct border between the patch and normal skin.Discolored skin patches (abnormal pigmentation). Dry skin. Open sores, lesions or ulcers. Peeling skin. Rashes, possibly with itchiness or pain. Red, white or pus-filled bumps. Scaly or rough skin.

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is a skin disorder characterized by abnormal light patches. a. Basal cell carcinoma b. Rosacea c. Leukoderma d. Keratoma refers to an abnormal brown or wine-colored skin discoloration with a circular or irregular shape. a. Stain b. Fissure c. Leukoderma d.It is a long-term disease that causes reddened skin and pimples, usually on the face. It can also make the skin thicker and cause eye problems. Scleroderma. Scleroderma causes areas of tight, hard skin, but can also harm your blood vessels and organs. Learn the causes and treatments of this skin disease. Vitiligo._____ is a skin disorder characterized by abnormal light patches leukoderma _______ refers to an abnormal brown or wine colored skin discoloration with a circular or irregular shape.A skin pigmentation disorder is a condition that affects the color of the skin. Some common types of skin pigmentation disorders include albinism, melasma, vitiligo, …

Signs and symptoms of vitiligo include: Patches of skin or mucous membranes that lose color. These can appear white or lighter than your natural skin tone. Patches of hair on your body turn silver, gray or white. Symptoms can be mild and only affect a small area of your body or severe and affect a large area of your skin.An inflammatory, uncomfortable and often chronic disease of the skin characterized by moderate to severe inflammation, scaling, and sometimes severe itching. Skin sore, or abrasion produced by scratching or scraping. Primarily environmental factors. A crack in the skin that penetrates the dermis.Symptoms. The most common sign of pityriasis alba is the skin patches that show up on your face, neck, arms, shoulders, or belly. You can have them for a few months to a few years. Usually, the ...The fibrous protein that gives its flexibility and helps skin regain its shape after being expanded is _____. A. keratin B. protein C. collagen D. elastin. D. An open lesion of the skin or mucous membrane, accompanied by pus and characterized by loss of skin depth, is a(n) _____. ... _____ is a skin disorder characterized by abnormal light ...Vitiligo is an acquired pigmentary skin disorder by the absence of pigmentary cells from the epidermis that results in white macules and patches on the body.[1] The condition is usually associated with few autoimmune disorders, with thyroid abnormalities are the commonest one. The etiology of vitiligo is unknown but there are …Study with Quizlet and memorize flashcards containing terms like A freckle is an example of a mark on the skin known as a ____. a. postule b. lesion c. cyst d. bulla, A blister containing watery fluid is a ___. a. sac b. freckle c. bulla d. papule, For which of the following kin lesions should the cosmetologist refer the client to his or her physician? a. bulla b. macule c. papule d. pustule ...Psoriasis is a skin condition characterized most commonly by the appearance of dry, thickened skin patches. This chronic condition is not contagious, meaning it can’t be transmitte...Psoriasis is a chronic autoimmune condition that causes the rapid buildup of your skin cells. This buildup of cells causes scaling on your skin’s surface. Inflammation and redness around the...A _____ is a small brown or flesh-colored outgrowth of the skin. skin tag. . _____ refers to an abnormal brown or wine-colored skin discoloration with a circular or irregular. shape. Stain. _____ is a skin disorder characterized by abnormal light patches. Leukoderma.Definition. a skin disorder characterized by chronic inflammationf the sebaceous glands from retained secretions, and bacteria known as Propionibacterium acne. Term. Albinism. Definition. Congential luekoderma, or absence of melanin pigment of the body, including the skin,hair, and eyes. Term. Anhidrosis.Ch. 8 Skin Disorders and Diseases. 63 terms. ... An abnormal cell mass varying in size, shape, and color. ... A small discolored spot or patch on the surface of the ...A skin disease characterized by red patches, covered with white-silver scales usually found on the scalp elbows, knees, chest, and lower back is: Definition. Psoriasis. Term. An inflammatory, painful itching disease of the skin, acute or chronic in nature, presenting many forms of dry or moist lesions is known as:

Keloid. A thin dry or oily plate of epidermal flakes is known as a ________. Scale. An open lesion of the skin or mucous membrane, accompanied by pus and characterized by loss of skin depth, is a (n): ulcer. A hair follicle filled with keratin and sebum forms a: comedo. A whitehead is also called a _____.

Dermatitis Venenata. 13. Q. A condition characterized by increased pigmentation on the skin, in spots that are not elevated is known as ___. A. Chloasma. 14. Q. A skin disorder characterized by light abnormal patches and is caused by a burn or congenital disease that destroys the pigment-producing cells is called __.Study with Quizlet and memorize flashcards containing terms like Many scientists and dermatologists believe that extrinsic factors such as exposure to the sun or smoking are responsible for up to percent of skin aging. a. 50 b. 60 c. 75 d. 85, It is recommended that you wear a broad-spectrum sunscreen with an SPF of at least on a …seborrheic dermatitis: a common skin disease that causes an itchy rash with flaky scales. It causes redness on light skin and light patches on darker skin. It's also called dandruff, cradle cap, seborrhea, seborrheic eczema, and seborrheic psoriasis. Rosacea: a common skin condition that causes redness and visible blood vessels in your face.2. Lentigo: A flat pigmented area similar to freckle; small, yellow-browned spots. Lentigo are multiple pigmented lesions. 3. Ephelids: aka freckles, are tiny round or oval pigmented areas of skin on areas exposed to the sun. Also refered to as macules, they are small flat colored spots on the skin. 4.Image courtesy of Karen McKoy, MD. Plaque psoriasis, the most common type of psoriasis, usually starts as one or more small red, silvery, shiny patches (plaques) on the scalp, elbows, knees, back, or buttocks. The eyebrows, underarms, navel, the skin around the anus, and the cleft where the buttocks meet the lower back may also be affected. Chapter 11 Skin Disorders and Diseases. Acne. Click the card to flip 👆. Chronic inflammatory skin disorder of the sebaceous gland that is characterized by comedones and blemishes; commonly known as acne simplex or acne vulgaris. Click the card to flip 👆. 1 / 82. What are skin pigment disorders? Skin color is determined by a pigment (melanin) made by specialized cells in the skin (melanocytes). The amount and type of melanin …Psoriasis is a clinical diagnosis, and a skin biopsy is usually not necessary for classic presentations of the disease. The characteristic lesions are sharply demarcated, scaly, erythematous plaques. The plaques may be pruritic and/or painful. They can be ovoid, round, or irregular in morphology and are often symmetrically distributed. why study SKIN DISORDERS ANO DISEASES? 1. Skin care specialists are in high demand in many salons and spas and earn excellent salaries. True False . 2. List the reasons acosmetologist should study and have a thorough understanding of skin disorders and diseases. a) b) c) Identify Disorders and Diseases of the Skin 3. A physician who specializes ...

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Ch. 8 Skin Disorders and Diseases. 63 terms. ... An abnormal cell mass varying in size, shape, and color. ... A small discolored spot or patch on the surface of the ...Hypopigmentation and vitiligo cause light patches of skin. The key difference is that hypopigmentation is associated with health conditions and injuries that may cause skin discoloration in spots or patches. In contrast, vitiligo is an autoimmune disorder that destroys melanocyte cells in your body that give your skin color, causing …_____ is a skin disorder characterized by abnormal light patches. Leukoderma. A flat spot or discoloration on the skin is a _____. ... A non contagious skin disease characterized by red patches covered with silver white scales found on the scalp, elbows, knees, chest, and lower back is _____.skin disorder characterized by light abnormal patches: caused by a burn or congenital disease that destroys pigment producing cells Seborrhea Dermatitis skin condition caused by a inflammation of the sebaceous glands it is often characterized by redness, dry or oily scaling crusting and or itchinessStudy with Quizlet and memorize flashcards containing terms like ___ is a skin disorder characterized by abnormal light patches, dead cells that form over a wound or blemish while its healing comprise a __, The most common and least severe type of skin cancer is: and more.skin disorder characterized by light abnormal patches: caused by a burn or congenital disease that destroys pigment producing cells Seborrhea Dermatitis skin condition caused by a inflammation of the sebaceous glands it is often characterized by redness, dry or oily scaling crusting and or itchinessA skin disease characterized by red patches, covered with white-silver scales usually found on the scalp elbows, knees, chest, and lower back is: ... A skin disorder characterized by light abnormal patches; caused by a burn or congenital disease that destroys the pigment producing cells is called:What an Autoimmune Disease Rash Means. Undiagnosed Conditions, Flares, and Steps to Take. By Cory Martin. Updated on March 26, 2024. Medically …_____ is a skin disorder characterized by abnormal light patches. leukoderma _____ refers to an abnormal brown or wine-colored skin discoloration with a circular or irregular shape.The medical term for itching; persistant itching. Pruitis. An itchy skin disease characterized by red patches covered with white-silver scales; caused by an over-proliferation of skin cells that replicate too fast. It is usually found in patches on the scalp, elbows, knees, chest, and lower back. Psoriasis.Chronic actinic dermatitis (CAD) is a photosensitivity disorder in which outbreaks of eczematous rashes develop most often on exposed skin. Patients suffering from the disorder often suffer form papules, or inflamed bumps, and plaques, which are scaly, raised patches of skin. These rashes often itch and are appear red in color.Request an Appointment. 410-955-5000 Maryland. 855-695-4872 Outside of Maryland. +1-410-502-7683 International. Detailed information on the most common types of skin pigment disorders, including albinism, melasma, … ….

Oculocerebral Syndrome with Hypopigmentation is an extremely rare inherited disorder characterized by the lack of normal color (hypopigmentation) of the skin and hair and abnormalities of the central nervous system that affect the eyes and certain parts of the brain (oculocerebral). Physical findings at birth include unusually light skin …Discolored skin patches (abnormal pigmentation). Dry skin. Open sores, lesions or ulcers. Peeling skin. Rashes, possibly with itchiness or pain. Red, white or pus-filled bumps. Scaly or rough skin.Xeroderma pigmentosum is a group of rare inherited skin disorders characterized by a heightened reaction to ultraviolet light (photosensitivity), skin discolorations, and the possible development of several types of eye disorders and skin cancers. ... shiny, firm masses of tissues (nodules); flat, scar-like lesions (plaques); or …A _____ is an abnormal brown or wine-colored skin discoloration with a circular and irregular shape. ... malignant melanoma. What is the most dangerous form of skin cancer, often characterized by black or dark brown patches on the skin that may appear uneven in texture, jagged, or raised? ... Acne is a skin disorder characterized by chronic ... Study with Quizlet and memorize flashcards containing terms like ________ is characterized by light abnormal patches., Sores that do not heal or unexpected skin bleeding may be symptoms of ________., What body system controls the activity of sweat glands? and more. blackhead; dilated hair follicle filled with bacteria; primary lesion in acne. Contact Dermatitis. Inflammation of the skin. Cyanosis. abnormal condition signaled by bluish discoloration of tissue. Study with Quizlet and memorize flashcards containing terms like Abscess, Acne, Albinism and more.Scleroderma is a rare autoimmune connective tissue disorder characterized by abnormal thickening of the skin. Connective tissue is composed of collagen, which supports and binds other body tissues. ... Morphea, or localized scleroderma, usually begins between the ages of 20 to 50 years as patches of yellowish or ivory-colored rigid, dry …•Leukoderma is a skin disorder characterized by light, abnormal patches. •Lentigines is the technical term for freckles - small yellow-colored to sunlight and air. •Nevus, also known as birthmark, is a small or large malformation of the skin due to abnormal pigmentation or dilated capillaries.Mar 20, 2023 · Chloasma: a common skin condition among pregnant women. It usually presents as dark, brownish patches of skin, mostly on the forehead, nose, upper lip, and cheeks. Lentigines: or liver spots, are benign lesions that occur on the sun-exposed areas of the body. The backs of hands and face are common areas. a chronic inflammatory skin disorder of the sebaceous glands characterized by comedones and blemishes ... most common and least severe type of skin cancer; often characterized by light or pearly nodules; characteristics include sores, reddish patches, or a smooth growth with an elevated border. body dysmorphic disorder. a psychological … _____ is a skin disorder characterized by abnormal light patches., Question. Dyskeratosis congenita (DKC) is a rare genetic disorder characterized by abnormal fingernails and skin pigmentation, the formation of white patches on the tongue and cheek, and progressive failure of the bone marrow. An autosomal dominant form of DKC results from mutations in the gene that encodes the RNA component of telomerase., Chapter 11 Skin Disorders and Diseases. Acne. Click the card to flip 👆. Chronic inflammatory skin disorder of the sebaceous gland that is characterized by comedones and blemishes; commonly known as acne simplex or acne vulgaris. Click the card to flip 👆. 1 / 82., Other skin conditions that result in pigment changes include albinism, which is a genetic disorder leading to very pale skin, and xeroderma pigmentosum, a condition where damage from UV light exposure is not properly repaired, leading to skin lesions. It is important to address the symptoms of these disorders for individual health and ..., Vitiligo is an autoimmune condition in which the pigment forming cells known as melanocytes are injured, resulting in white patches. The condition tends to progress and may even become universal ..., This autoimmune disease is characterized by changes in the texture and appearance of the skin due to increased collagen production. ... is a rare birth defect that causes light patches of skin to ..., An eruptive skin infection caused by contact with irritating substance such as chemicals or tints. Eczema. Inflammatory, painful itching disease of the skin, acute or chronic in nature, presenting many forms of dry or moist lesions. Excoriation. Skin sore or abrasion produced by scratching or scraping., Overview. Vitiligo (vit-ih-LIE-go) is a disease that causes loss of skin color in patches. The discolored areas usually get bigger with time. The condition can affect the skin on any part of the body. It can also affect hair and the inside of the mouth. Normally, the color of hair and skin is determined by melanin., Answer: Skin disorder characterized by light abnormal patches (hypopigmentation); caused by a burn or congenital disease that destroys the pigment-producing cells. Question: Macule (plural maculae) Answer: flat spot or discoloration on the skin, such as a freckle or a red spot after a pimple has healed. Question: Malignant …, Vitiligo. g) Skin disorder characterized by light, abnormal patches. h) Technical term for freckles. Is a skin disorder characterized by abnormal white patches? Vitiligo. Vitiligo is a disorder that causes patches of skin to become white. It happens because cells that make color in your skin are destroyed., bulla. A noncontagious skin disease characterized by red patches covered with silver-white scales found on the scalp elbows, knees, chest and lower back is _____. a. herpes. b. papules. c. psoriasis. d. macula. psoriasis. A small elevation on the skin that contains no fluid, but may develop pus is a _____. a. secondary lesion., Antisocial personality disorder is often characterized by a disregard for others and right or wrong, but there's so much more to the condition. Like other personality disorders, an..., blackhead; dilated hair follicle filled with bacteria; primary lesion in acne. Contact Dermatitis. Inflammation of the skin. Cyanosis. abnormal condition signaled by bluish discoloration of tissue. Study with Quizlet and memorize flashcards containing terms like Abscess, Acne, Albinism and more., An abnormal cell mass varying in size, shape, and color is a: tumor. A closed, abnormally developed sac, containing fluid, semifluid, or morbid matter above or below the. skin is a. cyst. An accumulation of epidermal flakes, dry or greasy, is known as a: scale. A skin sore or abrasion produced by scratching or scraping is known as a:, Keratosis refers to any skin disorder that involves the abnormal growth of a protein in the skin called keratin. Changes in keratin levels lead to visible growths on the skin that ..., Is a skin disorder characterized by light abnormal parches it is caused by a burn scar inflammation or congenital disease that destroys his pigment producing cells. ... Is an acquired superficial thickened patch of the epidermis. Mole. Is a small brownish spot or blemish on the skin ranging in color from pale tan to brown or bluish black., _____is a skin disorder characterized by light abnormal patches; it is caused by a burn, scar or congenital disease that destroys the pigment producing cell. Lentigines ______________is the technical term for freckles., The skin is the body's largest organ. Thanks to its exterior location, we can easily observe the symptoms of many of its disorders. Some skin disorders are characterized by color changes. Vitiligo, for example, appears as depigmented areas of the skin due to abnormal melanin production., Dark, brown patches on the skin that may appear uneven in texture, jagged, or raised may be a warning sign of: malignant melanoma. ... _____ is a skin disorder characterized by abnormal light patches. leukoderma. excessive sweating caused by heat or general body weakness is _____., the congenital absence of pigmentation in the eyes and skin and hair ... common skin disease by contact with acid,alkali or soap. anaerobic. does not use oxygen. anhidrosis. Deficiency in perspiration, often a result of fever or certain skin diseases. basal cell carcinoma. Most common and least severe type of skin cancer; often characterized by ..., A skin disorder characterized by light abnormal patches caused by a burn is called post-inflammatory hypopigmentation. The skin disorder can occur on any part of the body that has been burned, but is most common on the face, neck, and hands., 23. A _____ is a large protruding pocket-like lesion filled with sebum. a. pustule b. sebaceous cyst c. verruca d. keratoma. ____ 24. Inflammation of the sebaceous glands characterized by redness, dry or oily scaling, crusting, and/or itchiness is called _____. a. acne rosacea b. impetigo c. scale dermatitis d. seborrheic dermatitis., Dark, brown patches on the skin that may appear uneven in texture, jagged, or raised may be a warning sign of: malignant melanoma. ... _____ is a skin disorder characterized by abnormal light patches. leukoderma. excessive sweating caused by heat or general body weakness is _____., It's a multisystem disorder. Inflammation affects the skin, and the skin is more sensitive than usual. Howland: It's a chronic condition and tends to flare periodically. The symptoms vary. Dr. Davis: Atopic dermatitis tends to be red, weepy, crusty, itchy, flaky patches, like oval or circular-shaped areas on the skin. Our skin is like a brick wall., Psoriasis is a skin disease that causes a rash with itchy, scaly patches, most commonly on the knees, elbows, trunk and scalp. Psoriasis is a common, long-term (chronic) disease with no cure. It can be painful, interfere with sleep and make it hard to concentrate., Are you tired of dealing with rough skin? Visit HowStuffWorks to learn about 5 skin care tips for men with rough skin. Advertisement Sandpaper may be great for refinishing a piece ..., An information guide about Alzheimer's disease, including the symptoms of Alzheimer's, treatment options, resources, and support groups. Alzheimer’s disease is a condition of abnor..., What is psoriasis? Psoriasis is a chronic (long-lasting) disease in which the immune system works too much, causing patches of skin to become scaly and inflamed. Most often, psoriasis affects the: Scalp. Elbows. Knees. The symptoms of psoriasis can sometimes go through cycles, flaring for a few weeks or months followed by times when …, Hyperpigmentation can be caused by: Birthmarks. Age spots. Acne scars. Pregnancy (during which melasma, or tan, brown, or gray patches can appear on the face) Addison’s disease, or a rare disorder which causes decreased function of the adrenal gland and dark patches of skin., Ch. 8 Skin Disorders and Diseases. 63 terms. ... An abnormal cell mass varying in size, shape, and color. ... A small discolored spot or patch on the surface of the ..., Feb 14, 2024 · A skin disorder is a condition that affects the skin's appearance or function. Some skin disorders are permanent, some are temporary, and some are life-threatening. Learn about 25 common skin disorders with pictures and details, such as acne, eczema, rosacea, and measles. , Study with Quizlet and memorize flashcards containing terms like Many scientists and dermatologists believe that extrinsic factors such as exposure to the sun or smoking are responsible for up to percent of skin aging. a. 50 b. 60 c. 75 d. 85, It is recommended that you wear a broad-spectrum sunscreen with an SPF of at least on a …, Vitiligo is an autoimmune condition in which the pigment forming cells known as melanocytes are injured, resulting in white patches. The condition tends to progress and may even become universal ..., Melanin is designed to help protect the skin from the sun's UV radiation. Leukoderma Skin disorder characterized by light abnormal patches Albinism Absence of pigment in the skin, hair, and eyes Vitiligo Pigmentation disease characterized by white patches on the skin from lack of pigment cells; sunlight makes it worse.