Alopecia

Question 1

Type categories of allopecia

Answer 1

Cicatricial - With evidence of tissue destruction, inflammation, atrophy, or scarring

Non-cicatricial - hair loss without any signs of inflammation

Question 2

Non-cicatricial alopecia

Answer 2

Androgenetic alopecia
Alopecia Areata
Telogen effluvium
Anagen effluvium

Androgenetic alopecia - Male or female pattern balding

Telogen effluvium - effluvium means to lose hari. Increased shedding of normal hairs (telogen hairs)
When the body is subjected to extreme stress, as much as 70 percent of hair can prematurely enter the telogen phase and begin to fall, causing a noticeable loss of hair.
Hypo or hyper thyroidism, postpartum stress, malnutrition, chemotherapy, major surgery, serious illness.
Hair will regrow

Anagen effluvium - hair loss involving entire scalep.
Caused by growth arrest, radiation therapy, drugs, systemic chemotherapy or malnutrition.
Hair regrows.

Telogen effluvium and Anagen effluvium are both mainly

Question 3

Cicatrial alopecias

Answer 3

CCLE
Lichen planus planpilaris
Dissecting folliculitis or cellulitis
Alopecia mucinosa, Follicular mucinosis
Folliculitis Decalvans, Pustular folliculitis 
Folliculitis keloidis
Pseudopelade of brocq 

Pseudopelade of brocq - proceeds to the appearance or end stage of all non-inflammatory but still scarring alopecias, because it resembles Alopecia areata

Chronic cutaneous lupus, discoid lupus

Lichen planopilaris - hair loss from lichen planus

Central centrifugal scarring alopecia - follicular degernation syndrome, hot comb alopecia. Predominantly in black women, related to chronic chemical processing, heat, or tension on the hair.

Dissecting folliculitis, cellulittis

Alopecia mucinosa - Follicular mucinosis
Erythematous lesions of alopecia on the scalp or face.
- prominent hypertrophy of the follicular sebaceous gland and mucin production, with perifolicular lymphocyte and histiocyte infiltration.
Can be a symptom of T-cell lymphoma.

Folliculitis decalvans - Pustular folliculitis causing hair loss. S. aureus infection is common, but unclear if this is the cause or a common superinfeciton.
Acute suppurative follicle infection followed by irreversible scarring alopecia.

Dissecting folliculitis - aka dissecting cellulitis
Most common in black men, Deep inflammatory nodules, usually over the occiput.
Also has S. aureus infections.
Irreversible scarring folliculitis.

Folliculitis Keloidalis Nuchae
Acne keloidalis, scarring acne with keloid scare and scarring alopecia.
Usually on the nape of the neck and occiput.

Question 4

Alopecia areata

Answer 4

Alopecia Areata - localized round patchy loss of hair with no inflamation.
- progresses to AA totalis, all scalp hair, or AA universalis, all body hair.

Question 5

Androgenic alopecia

Answer 5

male pattern balding

Question 6

Type of temporary hair loss caused by significant physical or mental stress

Answer 6

Telogen effluvium

From hairs shifting telogen phase due to the stressor, major surgery, hypo or hyperthyroidism, sometimes postpartum or nutritional deficiency.

Question 7

Anagen effluvium

Answer 7

Type of hair loss involving whole scalp due to radiation therapy or systemic chemotherapy.

Question 8

Systemic diseases causing scarring allopecia

Answer 8

Discoid lupus

Lichen planus

Cellulitis of the scalp.

Central centrifugal scarring alopecia - from chemical physical irritation, chroni too much hair treatmetn.