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Alopecia

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Information about Alopecia
Health & Medicine

Published on March 17, 2009

Author: NTavakoli

Source: slideshare.net

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Alopecia Nastaran tavakoli Guilan University of Medical sciences

Anatomy of Hair

 

Launugo Vellus hair Terminal hair

Launugo

Vellus hair

Terminal hair

The life cycle of a hair is divided into three phases. The actively growing (Anagen)phase the transitional(Catagen) phase the resting (Telogen) phase.

The life cycle of a hair is divided into three phases.

The actively growing (Anagen)phase

the transitional(Catagen) phase

the resting (Telogen) phase.

Hair Growth Cycle

Hair pull test

Trichogram

Anagen Catagen Telogen

A physiologic reaction Genetic DHEA-S Norwood-Hamilton Classification Family history: Commonly positive Androgenic Alopecia in men (male pattern baldness)

A physiologic reaction

Genetic

DHEA-S

Norwood-Hamilton Classification

Family history: Commonly positive

Norwood-Hamilton Classification

 

 

Treatment Minoxidil(Rogaine) Finasteride(Propecia) Autotransplantation of hair flap surgery Scalp extension and expansion

Minoxidil(Rogaine)

Finasteride(Propecia)

Autotransplantation of hair

flap surgery

Scalp extension and expansion

Androgenic Alopecia in Women (Female pattern hair loss) Women with androgenetic alopecia do not have higher levels of circulating androgens. Normal menses Normal fertility Diffuse central thinning There is not usually any recession of the frontal hairline.

Women with androgenetic alopecia do not have higher levels of circulating androgens.

Normal menses

Normal fertility

Diffuse central thinning

There is not usually any recession of the frontal hairline.

Associated findings: Signs or symptoms of hyperandrogenism should be looked for, ie, hirsutism,moderate to severe or treatment-refractory acne,irregular menses, infertility, and/or galactorrhea.Acanthosis nigricans is a marker for insulin resistance which is commonly associated with hyperandrogenism

Associated findings: Signs or symptoms of hyperandrogenism should be looked for, ie, hirsutism,moderate to severe or treatment-refractory acne,irregular menses, infertility, and/or galactorrhea.Acanthosis nigricans is a marker for insulin resistance which is commonly associated with hyperandrogenism

If a woman has irregular menses, abrupt hair loss, hirsutism, or acne recurrence, an endocrine evaluation is appropriate. In this situation, total testosterone, free testosterone, dehydroepiandrosterone sulfate,and prolactin levels should be obtained.

If a woman has irregular menses, abrupt hair loss, hirsutism, or acne recurrence, an endocrine evaluation is appropriate.

In this situation, total testosterone, free testosterone, dehydroepiandrosterone sulfate,and prolactin levels should be obtained.

Check TSH and serum ferritin Hypothyroidism iron deficiency (serum ferritin or serum iron and TIBC) telogen effluvium

Check TSH and serum ferritin

Hypothyroidism

iron deficiency (serum ferritin or serum iron and TIBC)

telogen effluvium

 

 

 

 

 

 

 

Minoxidil Finasteride? Spironolactone (Aldactone) Cyproterone Acetate with Ethinyloestradiol (Diane ) TREATMENT:

Minoxidil

Finasteride?

Spironolactone (Aldactone)

Cyproterone Acetate with Ethinyloestradiol (Diane )

Traction alopecia This condition is caused by localized trauma to the hair follicles from tight hairstyles that pull at hair over time. If the condition is detected early enough, the hair will regrow. Braiding, cornrows, tight ponytails, and extensions are the most common styling causes.

This condition is caused by localized trauma to the hair follicles from tight hairstyles that pull at hair over time.

If the condition is detected early enough, the hair will regrow.

Braiding, cornrows, tight ponytails, and extensions are the most common styling causes.

 

 

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