Integument Flashcards
What are some adnexal structures?
hair follicles, glands, claws, and hooves
Orthokeratotic Hyperkeratosis
anuclear squamous epithelium
Parakeratotic Hyperkeratosis
nucleated squamous epithelium
Causes of Primary Idiopahtic Seborrhea
inherited, dry form (sicca) - dry skin;
Epidermal atrophy
Decrease in # and size of epithelium
Epidermal hyperplasia
Increse in the # of cells in stratum spimosum
Spongiosis Edema
intracellular edema of the epithelium
Reticular Degenerative Edema
intracellular swelling of keratinocytes
Hydrophic/Vacuolar Degenerative Edema
intracellular swelling of basal keratinocytes resulting in vesicles
Acantholysis
disruption of desmosomes between keratinocytes
Vesicles and Bulla
Fluid filled areas within/beneath epidermis
Dermal Atrophy
decrease in quality of collagen fibrils
Fibrosis/fibroplasia
proliferation of fibroblasts and newly formed collagen fibrils
Solar elastosis
increase in thick basofilic fibers in dermis
Follicular Dysplasia
incomplete/abnormal development of hair follicle/shaft
Sebaceous adenitis
inflammatory reaction affecting sebaceous glands
Panniculitis
inflammation of SQ fat
Congenital Alopecia and Hypotricosis
ectodermal dysplasia resulting in alopcia and missing teeth
Epidermolysis Bullosa (“Red foot Dz”)
hereditary blistering of skin and MM after minor trauma
Epitheliogenesis Imperfecta
Genetic failure of statified epithelium and adnexa to form completely
Collagen dysplasia
decreased tensile strength of collagen, resulting in stretchy skin
Dermatosis vegetans
erythematous papules, hoof malformation, giant cell pneumonia
Eosinophilic Plaques and Granulomas
erythmatous, pruritic, erosive/ulcerative
eosinophil infiltration
Plasma Cell Pododermatitis
soft and spongy swelling of foot pad
plasma cell infiltration
