December 1, 2015 - SG - Alopecia

Question 1

Alopecia Scheme

Answer 1

Alopecia

Scaring Non Scarring

Diffuse Patterned Diffuse Patterned

Question 2

Three Most Common Causes of Alopecia

Answer 2

Alopecia areata

Telogen effluvium

Androgenic alopecia

Question 3

Alopecia Areata

Answer 3

Also known as spot baldness, is an autoimmune disease in which hair is lost from some or all areas of the body. Spots are often seen on the scalp, especially in early stages.

In 1-2% of cases, the condition can spread to the entire scalp (alopecia totalis) or the entire epidermis (alopecia universalis).

Question 4

Alopecia Totalis

Answer 4

Complete loss of hair on the scalp and head.

Affects the scalp, eyebrows, eyelashes, and facial hair.

Question 5

Alopecia Universalis

Answer 5

All body hair falls out.

Question 6

Exclamation Point Hairs

Answer 6

A characteristic feature of alopecia areata.

Hairs look like little exclamation points. This is not seen with any other kind of alopecia.

Question 7

Ophiasis Pattern

Answer 7

Loss of hair along the bottom and sides.

Poorer prognosis for regrowth of hair.

Question 8

Alopecia Areata Regrowth

Answer 8

Often comes back as a different texture.

Often comes back as a different colour. (Blonde in kids, or grey in adults)

Question 9

Nail Changes in Alopecia Areata

Answer 9

Can get trachyonychia or “twenty nail dystrophy”.

Nails look sandpapered. This can be a manifestation of lichen planus, psoriasis, alopecia areata, IgA deficiency, atopic dermatitis and ichythosis vulgaris.

Question 10

Androgenic Alopecia

Answer 10

Male-pattern hair loss, also known as androgenic alopecia and male pattern baldness, is hair loss that occurs due to an underlying susceptibility of hair follicles to shrinkage due to the influence of androgenic hormones.

Male-pattern hair loss is the most common cause of hair loss and will affect up to 70% of men and 40% of women at some point in their lifetimes.

Question 11

Trichotillomania

Answer 11

Pulling out one’s hair.

Excoriations may or may not be present. Hair is often at different lengths, broken off hairs are close to the scalp, and there is a geometric shape to the area of hair loss.