Hair and Nail Disorders

What stage is the Telogen stage?

Rest stage

What stage is the Anagen stage?

Growing stage that determines hair length

What stage is the Catagen stage?

Follicle regresion/involution

What stage is the Exogen stage?

Hair shedding

How long does the anagen stage last?

2-8 years

How long does the catagen stage last?

3 weeks

How long does the telogen phase last?

3 months

What is terminal hair?

Coarse, long hair of eyebrows, scalp

What is vellus hair?

Peach fuzz

What is cicatricial alopecia and is it reversible?

Scarring alopecia, irreverible

What are 3 examples of cicatricial alopecia?

Discoid lupus, lichen planopilaris, dissecting cellulitis

What are some situations where nail growth is increased?

Pregnancy, trauma, psoriasis, medications

What are some situations where nail growth is decreased?

Systemic illness, malnutrition, vascular diseases, trauma, medications

In what situations do you treat onychomycosis?

Cellulitis of lower extremity, DM with venous insufficiency or edema, discomfort, pain

What does half and half nails indicate?

Renal disease

What does Terry's nails indicate?

Liver disease

what kind of biopsy do you perform on a pyogenic granuloma?

Punch or excisional ONLY

What is the A in melanoma?

Age, african american, asians, american indians

What is the B in melanoma?

Brown to black, breadth of 3mm+, verigated borders

What is the C in melanoma?

Change in the nail bed

What is the D in melanoma?

Digit (thumb, index finger, great toe)

What is the E in melanoma?

Extension of pigment onto nail fold (Hutchinson's)

What is the F in melanoma?

Family or personal Hx of dysplastic nevus or melanoma