VT 101 Chapter 10 [Pathology] Integumentary System
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globeuniversity on June 20, 2012
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110 terms
Terms | Definitions |
|---|---|
 Abrasion | Injury in which superficial layers of skin are scraped. |
| Abscess | Localized collection of pus. |
| Acne | Skin inflammation caused by plugged sebaceous glands and comedone development from papules and pustules. |
| Chin acne | Common condition in cats in which acne develops on the chin and lip area. |
| Acute moist dermatitis | Bacterial skin disease that is worsened by licking and scratching; also called hot spot. |
| Alopecia | Hair loss resulting in hairless patches or complete lack of hair. |
| Shedding | Normal hair loss due to various causes. |
| Atopy | Hypersensitivity reaction in animals involving pruritus with secondary dermatitis; commonly called allergies or allergic dermatitis. |
| Hypersensitization | Increased response to an allergen. |
| Hyposensitization | A decreased response to an allergen. |
| Bullae | Multiple contained skin elevations filled with fluid that are greater then 0.5 cm in diameter. Singular= bulla |
| Burn | tissue injury caused by heat, flame, electricity, chemicals, or radiation. |
| Carbuncle | Cluster of furuncles. |
| Carcinoma | Malignant neoplasm of epithelial tissue. |
| Cellulitis | Inflammation of connective tissue. |
| Diffuse | Inflammation widespread. |
| Localized | Inflammation within a well-defined area. |
| Comedo | Blackhead or build up of sebum and keratin in a pore. Plural = comedones. |
| Contusion | Injury that does not break the skin; characterized by pain, swelling, and discoloration. |
| Crust | Collection of dried sebum and cell debris. |
| Dermatitis | Inflammation of the skin. |
| Contact Dermatitis | Inflammation of the skin caused by touching an irritant. |
| Dermatocellulitis | Inflammation of the skin and connective tissue. |
| Dermatomycosis | Abnormal skin condition caused by superfical fungus; also called dermatophytosis. |
| Dermatophytes | Superficial fungi that are found on the skin. i.e. ringworm |
| Dermatosis | Abnormal skin condition. Plural = dermatosus. |
| Discoid lupus erythematosus | Canine autoimmune disease in which the bridge of the nose (and sometimes the face and lips) exhibit depigmentation, erythema, scaling, and erosions; abbreviated DLE; may have been called collie nose or solar dermatitis in the past. |
| Dyskeratosis | Abnormal alteration in keratinization. |
| Ecchymosis | Purplish nonelevated patch of bleeding into the skin; also called a bruise; Plural = ecchymoses |
| Ecthyma | Skin infection with shallow eruptions caused by a pox virus; also known as soremouth. |
| Eczema | General term for inflammatory skin disease characterized by erythema, papules, vesicles, crusts, and scabs either alone or in combination. |
| Eosinophilic granuloma complex | Collective name for autoimmune lesion of eosinophilic ulcer, eosinophilic plaque, and linear granuloma found in cats and rarely in dogs. |
| Eosimophilic Ulcer | Located on the lip and oral mucosa of cats. also called rodent ulcer. |
| Eosinophilic Plaques | Raised pruritic lesions on the ventral abdomen of cats. |
| Linear granulomas | Located in a line usually on the caudal aspect of the hindlimb of cats. |
| Erythema | Skin redness. |
| Erythematous | Pertaining to redness. |
| Erythroderma | Abnormal redness of skin occurring over a widespread area. |
| Erythr/o: Erythem/o, Erythemat/o | Combining forms for red |
| Exanthema | Cutaneous rash caused by fever or disease. Singular = exanthem |
| Feline Miliary Dermatitis | Skin disease of cats in which multiple crusts and bumps are present predominantly on the dorsum; the disease can be associated with many causes. |
| Fissure | Cracklike sore. |
| Fistula | Abnormal passage from an internal organ to the body surface or between two internal organs. Plural = fistulae |
| Flea Allergy Dermatitis | Inflammation of the skin caused by an allergic reaction to flea saliva; abbreviated FAD. |
| Allergen | A substance that produces an allergic response. |
| Footrot | Hoof disease that spreads from the interdigital skin to the deeper foot structures. |
| Frostbite | Tissue damage caused by extreme cold or contact with chemicals with extreme temperature (e.g. liquid nitrogen). |
| Furuncle | Localized skin infection in a gland or hair follicle; also called a boil. |
| Furunculosis | The abnormal condition of persistent boils over a period of time. |
| Gangrene | Necrosis associated with loss of circulation. |
| Necrosis | Condition of dead tissue. |
| Necrotic | Pertaining to dead tissue. |
| Putrefaction | Decay that produces a foul smell. |
| Granuloma | Small area of healing tissue. |
| Hemangioma | Benign tumor composed of newly formed blood vessels. |
| Hyperkeratosis | Increased growth of the horny layer of skin; also called acanthokeratodermia. |
| Infestations | Occupation and dwelling of a parasite on the external surface of tissue. |
| Ectoparafites | Live on the external surface; ecto- = means outside. |
| Louse | A wingless parasite insect; plural is lice. |
| Pediculosis | Lice infestation. |
| Mite | An insect with a hard exoskeleton and paired, jointed legs. |
| Mange | A common term for skin disease caused by mites. |
| Sarcoptic and Demodectic | Two types of mange depending on the the type of mite. |
| Chiggers | Infestation by mite larvae that results in severe pruritus. |
| Acariasis | Infestation with ticks or mites. |
| Maggots | Insect larvae found especially in dead or decaying tissue. |
| Myiasis | Infestation by fly larvae. |
| Keratosis | abnormal condition of epidermal overgrowth and thickening. Plural = keratoses. |
| Laceration | Accidental cut into the skin. |
| Lesion | Pathological change of tissue; used to describe abnormalities in many locations. |
| Lipoma | Benign growth of fat cells; also called fatty tumor; commonly seen in older dogs. |
| Macule | Flat, dicolored lesion less than 1 cm in diameter; also called macula. |
| Melanoma | Tumor or growth of pigmented skin cells. |
| Malignant melanoma | Describes cancer of the pigmented skin cells. |
| Amelanotic Melanoma | Unpigmented malignant melanoma. |
| Nodule | Small knot protruding above the skin. |
| Onychomycosis | Superficial fungal infection of the claw. |
| Pallor | Skin paleness. |
| Papilloma | Benign epithelial growth that is lobed. |
| Papule | Small, raised skin lesion less than 0.5 cm in diameter. |
| Parakeratosis | Lesion characterized by thick scales, cracking , and red raw surface caused by the persistence of keratinocyte nuclei in the horny layer of skin. |
| Paronychia | Bacterial or viral infection. |
| Patch | Localized skin color change greater than 1 cm in diameter. |
| Pemphigus | Group of immune mediated skin diseases characterized by vesicles, bullae, and ulcers. |
| Pemphigus Vulgaris | Most common form of pemphigus, which consists of shallow ulcerations frequently involving the oral mucosa and mucocutaneous junctions. |
| Petechiae | Small, pinpoint hemorrhages. Singular= petechia. |
| Plaque | Solid raised lesion greater than 0.5 cm in diameter. |
| Polyp | Growth from mucous membranes. |
| Pruritus | Itching. |
| Purpura | Condition characterized by hemorrage into the skin that causes bruising. Two types are ecchymosis and petechia. |
| Pustule | Small circumscribed, pus filled skin elevation. |
| Circumscribed | Contained in a limited area. |
| Pyoderma | Skin disease containing pus. |
| Pus | An inflammatory product made up of leukocytes, cell debris, and fluid. |
| Purulent | Containing or producing pus. |
| Puppy pyoderma | Skin disease in puppies characterized by pus-containing lesions. |
| Juvenile pyoderma | Skin disease in puppies that progresses to a systemic disease characterized by fever, anorexia, and enlarged and abscessing lymph nodes; also called puppy strangles. |
| Sarcoma | Malignant neoplasm of soft tissue arising from connective tissue. |
| Scale | Flake |
| Scar | Mark left by a healing lesion where excess collagen was produced to replace injured tissue; also called cicatrix or cicatrices, which are multiple scars. |
| Sebaceous Cyst | Closed sac of yellow fatty material. |
| Cyst | A closed sac containing fluid or semisolid material. |
| Seborrhea | Skin condition characterized by overproduction of sebum (oil). |
| Skin tag | Small growth that hangs from the body by stalks. |
| Ulcer | Erosion of skin or mucous membrane. |
| Decubital Ulcers | Erosions of skin or mucous membranes as a result of prolonged pressure; also called bedsores. |
| Urticaria | Localized areas of swelling that itch; also called hives. |
| Verrucae | Warts |
| Vesicle | Contained skin elevation filled with fluid that is greater than 0.5 cm in diameter; also called a blister, bulla, or bleb. |
| Wheal | Smooth slightly raised swollen area that itches. |
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