Hair/Nail Flashcards
Anogen phase
hair growth at about 1cm per month. Lasting 2-6 years. 90-95% of hair
Catogen phase
structural changes leading to telogen phase. Lasting 2-3 weeks. 1% of hair.
Telogen phase
resting/shedding phase. Lasts 2-3 months. Approx 25-100 hairs are shed daily.
alopecia tx
- steroids (mainly topical)
- PUVA: Psoralene (P) Ultraviolet Radiation (UVA): psoralene is drug taken by mouth that makes skin more responsive to UV light. UV light thought to destroy inflammatory cells
- Rogain (minoxidil)
where does alopecia areata present on the head?
occipital and parietal
pathophy of androgenic alopecia
Androgen (testosterone) produced by gonads (testes) is converted into Dihydrotestosterone (DHT) by 5 alpha-reductase.
DHT slows down hair follicle proliferation = follicular atrophy = shorter and finer hair at slower rate.
androgenic alopecia tx?
- propecia (5-a reducatase inh)
- avodart
- topical/solution rogain
telogen effluvium
excess hair loss, common after pregnancy
hair w/white bulbs at the ends seen
how to treat hirsutism?
- spironolactone
- OCP
- vaniqa
MCC hirsutism
PCOS
paronychia
- inflammation/infection of nailfold surrounding the plate
- Associated with nail biting, frequent wetting of hands, thumb sucking, aggressive manicuring
- caused by trauma to nail fold or cuticle
paronychia tx
- drainage
- warm compresses
Onychomycosis: (Tinea Unguium)
fungal infection of the fingernails or toenails
Most common cause Trichophyton rubrum
Presentation:
Lusterless, brittle, hypertrophic, friable, yellowish or white discoloration of nails
20 – 50 yo
onychomycosis
topical and sytemic tx for pnychomycosis
Naftifine gel1% orclopriox nail laquer
Griseofulvin, Itraconazole, Terbinafine
