Week 3: pathology Flashcards
abscess
localized collection of pus
abrasion
injury in which superficial layers of skin are scraped
acne
skin inflammation caused by plugged sebaceous glands
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 a HOT SPOT
alopecia
hair loss resulting in hairless patches or complete lack of hair
shedding
normal hair loss
atopy
reaction in animals involving pruritis with secondary dermatitis
commonly called allergies or allergic dermatitis
hypersensitization
increased response to an allergen
hyposensitization
decreased response to an allergen
bullae
multiple contained skin elevations filled with fluid that are greater than 0.5 cm in diameter
bulla- singular
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
widespread
localized
well defined area
comedo
blackhead or buildup of sebum and keratin in a pore
plural - comedones
contusion
injury that does not break the skin
crust
collection of dried sebum and cell debris
dermatitis
inflammation of the skin
contact dermatitis
inflammation of the skin caused by touching an irratant
dermatocellulitis
inflammation of the skin and connective tissue
dermatomycosis
abnormal skin condition caused by a fungus
also called dermatophytosis
dermatophytes
superficial fungi that is found on the skin
dermatosis
abnormal skin condition
plural- dermatoses
discoid lupus erythematosus
canine autoimmune disease in which the bridge of the nose exhibit depigmentation, erythema, scaling, and erosions
dyskeratosis
abnormal alteration of keratinization
ecchymosis
purplish nonelevated patch of bleeding into the skin
also called a bruise
ecthyma
skin infection with shallow eruptions caused by a pox virus
eczema
general term for inflammatory skin disease
eosinophilic granuloma complex
collective name for autoimmune lesion of eosinophilic ulcer
eosinophilic ulcer or rodent ulcer
located on the lip and oral mucosa of cats
eosinophilic plaques
raised pruritic lesions on the ventral abdomen of cats
linear granulomas
are 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
the combining forms erythr/o, erythem/o, and erythemat/o means
red
exanthema
cutaneous rash cased by fever or disease
feline miliary dermatitis
skin disease of cats in which multiple crusts and bumps are present predominantly on the dorsum
fissure
crack like sore
fistula
abnormal passage form an internal organ to the body surface or between two internal organs.
allergen
substance that causes an allergic reaction
flea allergy dermatitis
inflammation of the skin caused by an allergic reaction to flea saliva
footrot
bacterial hoof disease that spreads form the interdigital skin to the deeper foot structures
frostbite
tissue damage caused by extreme cold or contact with chemicals with extreme temperature
furuncle
localized skin infection in a gland or hair follicle
also called a BOIL
furunculosis
is 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
foul smell from decaying
granuloma
small area of healing tissue
hemangioma
benign tumor composed of newly formed blood vessels
hyperkeratosis
increased growth of the horny layer of the skin
infestations
occupation and dwelling of a parasite on the external surface of tissue
ectoparasites
parasites that live on the external surface
ecto- means
outside
louse
is a wingless parasitic insect
plural- lice
pediculosis
is a lice infestation
mite
is an insect with a hard exoskeleton and paired joint legs
mange
is a common term for skin disease caused by mites
chiggers
is infestation by mite larvae that results in severe pruritus
acariasis
is infestation with ticks or mites
maggots
are insect larvae found especially in dead or decaying tissue
myiasis
is infestation by fly larvae
keratosis
abnormal condition of epidermal overgrowth and thickening
laceration
accidental cut into the skin
lesion
pathologic change of tissue
lipoma
benign growth of fat cells
macule
flat, discolored lesion less than 1 cm in diameter
melanoma
tumor or growth of pigmented skin cells
malignant melanoma
term used to describe cancer of the pigmented skin cells
amelanotic melanoma
an 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
paronychia
bacterial or viral infection of the claw
patch
localized skin color change greater than 1 cm in diameter
pemphigus
group of immune mediated skin diseases characterized
pemphigus vulgaris
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
pruritis
itching
purpura
condition characterized by hemorrhage into the skin that causes bruising
pustule
small, circumscribed,, pus-filled skin elevation
Circumscribed
means contained in a limited area
pyoderma
skin disease containing pus
pus
is an inflammatory product made up of leukocytes, cell debris, and fluid
purulent
means containing or producing pus
puppy pyoderma
is a skin disease in puppies characterized by pus-containing lesions
juvenile pyoderma
skin disease in puppies that progresses to a fever, anorexia, and enlarged abscessing lymph nodes
sarcoma
malignant neoplasm of soft tissue arising from connective tissue
scale
flake
scar
mark left by a healing lesion
cicatrix or cicatrices
means multiple scars
sebaceous cyst
closed sac of yellow fatty material
cyst
is a closed sac containing fluid or semisolid material
seborrhea
skin condition characterized by overproduction of sebum
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 beds sores
urticaria
localized areas of swelling that itch
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
lance
to open or pierce with a lancet (scalpel) to allow drainage
laser
device that transfers light into an intense beam for various purposes