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Numerous Brown Scaly Patches In Low Sun Exposure Areas, Photosensitive. History Of Mild Mixed Collagen Vascular Disease. Reason?

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Posted on Tue, 17 Jul 2012
Question: I am a 60 y/o woman with 20 year history of mild mixed collagen vascular disease. B/C I am photosensitive I have avoided sun for that time . In past month I have developed numerous brown scaley patches in areas of low sun exposure .... Eg. Eyebrows, inside and backs of arms and legs. They begin as discolorstions and gradually grow in size and become slightly elevated and scaley. They do not itch or burn. Any thoughts.
doctor
Answered by Dr. Dr.Raju.A.T (1 hour later)
Hi,

Thanks for your query.

The laying of protective keratin over the skin is in response to tolerable range of UV light in the natural sunlight.This keratin layer is one which protects from many foreign antigens , infective agents and allergens.

When skin is exposed less to sunlight the keratin layer is defective and leads to continuous irritation by local irritants like salts in the sweat , dust which elicit a continuous subclinical inflammation which is responsible for such de pigmentation. Also the defective keratin cannot protect the basal layers of the skin which leads to desquamation of the upper skin layers leading to scaly skin.

Do apply Gold silk oil or Petroleum jelly which avoid the irritation from local irritants and helps you prevent such lesions.

Hope I answered your query.

Wish you good health.

Regards,
Note: Hope the answers resolves your concerns, however for further guidance of skin related queries consult our Dermatologist.Click here to book a consultation

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Dr.Raju.A.T

General & Family Physician

Practicing since :2008

Answered : 4933 Questions

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Numerous Brown Scaly Patches In Low Sun Exposure Areas, Photosensitive. History Of Mild Mixed Collagen Vascular Disease. Reason?

Hi,

Thanks for your query.

The laying of protective keratin over the skin is in response to tolerable range of UV light in the natural sunlight.This keratin layer is one which protects from many foreign antigens , infective agents and allergens.

When skin is exposed less to sunlight the keratin layer is defective and leads to continuous irritation by local irritants like salts in the sweat , dust which elicit a continuous subclinical inflammation which is responsible for such de pigmentation. Also the defective keratin cannot protect the basal layers of the skin which leads to desquamation of the upper skin layers leading to scaly skin.

Do apply Gold silk oil or Petroleum jelly which avoid the irritation from local irritants and helps you prevent such lesions.

Hope I answered your query.

Wish you good health.

Regards,