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Alopecia Areata (AA)

by Carlo Raj, MD
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    Our topic here is alopecia areata. What does alopecia mean to you? It means loss of hair, period. Now, specifically, this alopecia areata is -- well, could be most likely associated with autoimmune disease or the cause is autoimmune. The reason I say that is whenever you have one autoimmune disease, it’s very possible that you have others, including maybe something like Hashimoto thyroid disease, and also Down’s syndrome. So, whenever you think about autoimmune, associations have to very much be taken into consideration clinically. You’ll never know as to which organ might be affected. With alopecia areata, we have a non-scarring alopecia type. So here, you take a look at the head of this individual, and the scalp specifically. You’ll notice that we have hair that’s being lost. Patches of loss on the scalp, or maybe perhaps, the beard. Then sometimes causes loss of all hair on scalp. We call this alopecia totalis. And all hair on body, and therefore, we call this alopecia universalis, as the name implies. In general, alopecia means loss of hair. Here, specifically, areata. Think of autoimmune disease, please. And remember, this is a non-scarring type of alopecia. Management: maybe perhaps, topical steroids, maybe intralesional type of steroids, oral steroids, or light treatment. Overall, steroid is something that you want to keep in mind when dealing with autoimmune diseases. The pathology: the hair bulb was attacked by the lymphocytes, as you can imagine, if we’re referring to autoimmune disease. Differential diagnoses: As we have continued now the theme of not only your diseases but the differentials. If it’s tinea capitis, what does that mean to you? It’s a fungal infection versus autoimmune disease. And the reason that we have capitis is because well, here, it might be a fungal infection of the scalp. And...

    About the Lecture

    The lecture Alopecia Areata (AA) by Carlo Raj, MD is from the course Inflammatory Skin Diseases.


    Included Quiz Questions

    1. Alopecia totalis
    2. Alopecia universalis
    3. Alopecia areata
    4. Trichotillomania
    5. Tinea capitis
    1. On KOH examination fungal organisms can be noted
    2. Intralesional steroids to treat the lesions
    3. Hair bulb is attacked by lymphocytes
    4. These lesions will lead to scarring and permanent alopecia
    5. Oral steroids to treat the lesions
    1. Trichotillomania
    2. Tinea capitis
    3. Alopecia universalis
    4. Alopecia areata
    5. SLE
    1. Cutaneous lupus erythematosus
    2. Alopecia areata
    3. Tinea capitis
    4. Trichotillomania
    5. Alopecia totalis

    Author of lecture Alopecia Areata (AA)

     Carlo Raj, MD

    Carlo Raj, MD


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