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16 Cards in this Set
- Front
- Back
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Scalp hair grows at the rate of about....
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o.5mm/day
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What are the three phases of the hair growth cycle?
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Anagen (growth)
Catagen (transition) Telogen (resting) |
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Hair color is detemined by...
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Eumelanin (black and brown hair)
Phaeomelanin (blonde and auburn hair) |
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Graying of hair is due to...
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Lack of melanocyte function.
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Hirsutism
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Androgen- dependent growth in women in anatomic sites where such growth is considered secondary male characteristic
Idiopathic Hormone-secreting tumor Male hormone excess Medications |
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Hypertrichosis
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Increased hair density or length beyond normal in any area of the body
Idiopathic Disease associated Part of congenital syndrome |
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The hair pull test involves...
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Even traction on 30-40 hairs between thumb and forefinger.
More than two hairs is a positive test. |
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Non-Scarring causes of hair loss include....
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Androgenetic
Telogen Effluvium Chronic telogen effluvium Alopecia Areata Traction Trichotillomania Chemical Damage |
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Scarring causes of hair loss include....
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Lichenplanopilaris
Discoid lesions of lupus Psuedopalade Follicular Degeneration Misc.—sarcoid, neoplasm, infection, temporal arteritis |
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Androgenetic Alopecia
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Etiology unknown
Hereditary factors important but unclear patterns Hormones influence disease In women: rule out congenital adrenal hyperplasia, neoplasm, drug, polycystic ovary disease Patient younger than 20 Patient with acute onset hair loss and clear signs of virilization |
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Treatment of androgentic alopecia includes...
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Minoxidil 2% (Rogaine)
Minoxidil 5% (Rogaine) Oral 5-alpha reductase inhibitors Oral Anti-Androgens Hair Transplantation Surgical flap procedures Combinations of above |
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Alopecia Areata is....
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Autoimmune process
Common, especially in patients < age 30 charcterized by Lymphocytic peribulbar perivascular inflammation surrounding anagen follicles localized or generalized Non-Scarring |
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Clubbing is defined as.....
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Lovibinds angle greater than 180 deg.
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Terry's nails are associated with.
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Liver disease
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Splinter fingernail hemorrages are associated with ...
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Bacterial endocarditis
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Hutchinson's sign is associated with...
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Melanoma
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