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- $Unique_ID{BRK02026}
- $Pretitle{}
- $Title{Recognizing a "Mongolian Spot"}
- $Subject{mongolian spot dermal melanocytes melanin pigment pigmentation birth
- marks birth mark genetic inherited}
- $Volume{}
- $Log{
- Anatomy of the Skin*0006701.scf}
-
- Copyright (c) 1993 Tribune Media Services, Inc.
-
-
- Recognizing a "Mongolian Spot"
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- QUESTION: My family has some Cherokee Indian blood from several generations
- back. All of my children and my grandchildren have had a faint spot on their
- lower back, above the buttocks. This disappears in a few months. When I
- asked two of my doctors, years ago, about the spot, they simply said it was a
- "Mongolian spot". Can you tell me anything about this? Thank you.
-
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-
- ANSWER: Originally this spot, present on the buttocks or in the area of the
- lower back of a newborn, was thought to be a characteristic of the Mongoloid
- race, and so was give the name "Mongolian spot". Actually it can be present
- in newborns of all races, although it is much more common in some,
- particularly Chinese and individuals with dark skin complexion. The spot may
- vary in size and shape, and is usually greyish or tinted blue. And it also is
- inherited, and so runs in families as it does in yours.
- The coloration in the spot is caused by a collection of cells called
- "dermal melanocytes" which contain a higher concentration of melanin or
- pigment. It lasts for several months, then begins to disappear gradually.
- The rate of disappearance speeds up around the age of 6, and there are usually
- no remains of the spot by age ten. These are just guidelines, for the changes
- vary from individual to individual, and the pigmentation may fade away at a
- much younger age. Obviously there is no lasting problem in these children,
- nor any ill effects that are the result of this pigmentation.
- Mongolian spots are not at all rare, but these do sometimes pose a bit of
- a quandary for the practicing physician, especially when seen in children of
- racial backgrounds that do not generally have these spots. In such cases, the
- question of child abuse must be considered, for a bruise may often be seen in
- this same region as the result of a violent spanking, and may be passed off as
- just another Mongolian spot.
-
- ----------------
-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
-