derm terms Flashcards Preview

Urinary Pathology - Butler > derm terms > Flashcards

Flashcards in derm terms Deck (62)
Loading flashcards...
1

loss of cohesion b/w keratinocytes caused by the breakdown of intercellular bridges

Acantholysis

2

thickening of the spinous cell layer (stratum spinosum) of the epidermis

Acanthosis

3

distal part of the extremities

Acral

4

hair loss

Alopecia

5

phase of hair cycle in which hair synthesis takes place

Anagen

6

lack of cellular differentiation and organization, a feature of neoplastic cells

Anaplasia

7

vascular reaction involving the deep dermis or subcutis and consisting of edema manifested as giant wheal; caused by dilation and increased permeability of capillaries (deeper version of urticaria)

Angioedema

8

programmed cell death

Apoptosis

9

reduction in size of a cell, tissue, organ, or part

Atrophy

10

marked intracellular fluid accumulation in the cells of the epidermis

Ballooning Degeneration

11

localized collection of fluid usually in or beneath the epidermis

Blister
(vesicle or bulla)

12

large blister (>1.0 cm)

Bulla

13

a malignant neoplasm of epithelial origin that has not invaded thru the basement membrane

carcinoma in situ

14

the stage of the hair cycle where old hairs are shed

Exogen

15

fluid, cells, or debris from blood vessels deposited in or on other tissues

Exudate

16

cleft or groove

Fissure

17

inflammation of a hair follicle

Folliculitis

18

circumscribed, painful, nodule (accumulation of pus) in the dermis secondary to follicular rupture

Furuncle

19

rupture of follicles usually caused by inflammation, distention, and/or trauma leading to entry of follicular contents into the dermis

Furunculosis

20

a genetically determined disorder of the skin

Genodermatosis

21

smooth skin, hairless skin

Glabrous

22

localized, tumor-like malformation of mature cells and tissues that includes normal components of the organ in which the ______ arises but that is disorganized, present in excess, & sometimes larger than normal.
usually, one tissue element predominates.
not a true neoplasm b/c it involves the proliferation of more than one cell type & often includes the development of complex structures such as arteries or follicles

Hamartoma
(Follicular Hamartoma, Vascular Hamartoma)

23

intracellular fluid accumulation in cells of the basal epidermis

Hydropic degeneration

24

histologic term for thickening of stratum corneum

Hyperkeratosis

25

increase in the number of normal cells

Hyperplasia

26

incomplete development

Hypoplasia

27

less hair than normal

Hypotrichosis

28

congenital skin disorder in which the skin is thickened by scales (hyperkeratosis) that can crack into plates resembling fish scales

Ichthyosis

29

bacterial dermatitis characterized by pustules

Impetigo

30

slow growing, a term applied to persistent ulcers on the lips of cats
sometimes incorrectly called "rodent ulcer" a term from the human literature used to refer to ulcerated basal cell carcinoma

Indolent

31

shedding of layers or scales

Exfoliation

32

non-inflammatory lesion of the skin

Dermatosis

33

dandruff

Detritus

34

abnormal, premature, or imperfect keratinization

Dyskeratosis

35

abnormal development; term may be used in association with a congenital or inherited developmental anomaly or in association w/an abnormality in maturation of cells within a tissue

Dysplasia

36

shedding of hair

Effluvium

37

degeneration of dermal connective tissue leading to accumulation of elastic fibers; sometimes seen with solar dermatitis

Elastosis

38

peripheral expanding ring of scale

Epidermal Collarette

39

inflammation of the epidermis

Epidermitis

40

separation of the epidermis from the dermis

Epidermolysis

41

having a predilection to enter the epidermis or other epithelial structures as seen w/cutaneous T cell lymphoma (mycosis fungicides)

Epidermotropic/Epitheliotropic

42

loss of all or part of the thickness of the epidermis

Erosion

43

rapid development of skin lesion associated with redness

Eruption

44

redness of skin caused by congestion of capillaries

Erythema

45

an intense focal folliculitis usually caused by a dermatophyte infection

Kerion

46

intraepidermal dendritic Ag-presenting cells

Langerhans' cells

47

superficial loss of epidermal layers caused by physical trauma (scratching)

Excoriation

48

infection of the stratum corneum of the epidermis, hair, or claws w/fungi of the genera Microsporum, Epidermophyton, or Trichophyton

Dermatophytosis

49

transition phase of the hair cycle b/w growth and resting phases

Catagen

50

an acute bacterial infection of the dermis and subcutis that spreads to surrounding soft tissues and is characterized by erythema, warmth infection is most often a penetrating wound in the area of infection; can also cause fever and enlarged lymph nodes

Cellulitis

51

plug of follicular stratum corneum and dried sebum in a hair follicle that leads to follicular distention

Comedo (pl. Comedones)

52

production of stratum corneum by terminal epidermal differentiation

Cornification

53

material formed by drying of exudate or secretion on the skin surface

Crust

54

naturally pigmented black or brown mycelium or conidium

Dermatiaceous

55

small molecular we. protein molecule (generally <30kD) that are mediators of inflammation and growth

Cytokines

56

inflammation of the skin

Dermatitis

57

hardening of the skin as a result of inflammation or fibrosis

Indurated

58

inflammation arranged in a layer close to and often obscuring the epidermal-dermal junction (interface), and w/vacuolated (hydropic degeneration) and sometimes apoptopic basal cells; the inflammation can be mild (cell poor) or extensive (cell rich)

Interface

59

dermatitis that develops b/c of friction b/w opposing skin surfaces (e.g. adjacent folds)

Intertrigo

60

the epidermal cells that synthesize keratin and comprise more than 90% of epidermal cells

Keratinocytes

61

an uncommon to rare circumscribed papular, plaque-like, or linear focus of proliferative keratinocytes covered by thick stratum corneum; can be caused by sun exposure (solar or actinic) or can be idiopathic (lichenoid, linear, cannon)

Keratosis
(pl. Keratoses)

62

thickening of the skin w/accentuation of skin creases marked by marked acanthosis

Lichenification