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 蒙古斑(图) |
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作者：Anonymous 在 罕见奇谈 发贴, 来自 http://www.hjclub.org
蒙古斑
1。蒙古斑是小孩在刚出生以后在身体背部或者臀部的青紫色斑痕，有时也见于肩膀
和胳膊，多数孩子的蒙古斑点在10岁以内会自行消失。也有少数人一直带有蒙古斑，
即使在长大成人以后。
2。蒙古斑并不是蒙古人特有的，各色人种都有此现象。但是在东亚人种的比例相当
高，由于东亚人种又被称为蒙古人种，所以该斑点由此得名。并不是象一些网友认
为的那样，跟蒙古人混血后而带有的斑点。白人中多见于法国和苏格兰。
3。日本成人中仍然带有蒙古斑的比例是2.88%。我没有查到中国人的相关数据，
详细，只有以下一段, 绝大多数中国人的蒙古斑在成人以后都自行消退，也有相当比例的中国婴儿在出生后没有蒙古斑。
Four Chinese females aged 21-35 years with Mongolian spots are reported.
Two patients had the spots on their arms while the other two had the spots
on their shoulders. The persistence of Mongolian spots in Chinese adults
has not been previously reported.
4。有些网友认为日本人没有蒙古斑，这是不正确的。中国日本的新生婴儿带有蒙古
斑的比例相当，东亚人种都有。也有相关文章说朝鲜人的比例更高，当然具体数据
没有得到证实。
In 1885 Baelz published a paper in a German anthropological journal calling
attention to a hitherto unrecorded feature among Japanese babies. Very often
infants are born with a dark blue stain, a birthmark, low down on the back
or legs which gradually fades and disappears over the course of about a
year.He called the stain "Mongolische Flecken"-- Mongolian Spots.
5.图示
Common Mongolian spots
These will disappear within 10 years.
d: Deep blue Mongolian spots
In these pictures all deep blue spots are ectopic and may become persistent Mongolian spots which remain until adulthood.
e: Ectopic Mongolian spots,
aberrant Mongolian spots
In these pictures all spots are thin and will disappear in within a few years.
The green triangle indicates the so-called 乪hot spot乫 of Mongolian spots. Most common spots appear in this area. Some other spots may appear in other regions such as the shoulders, upper back, arms, wrists, legs, ankles, lateral abdomen and elsewhere.
All spots are observed in the same 2-year-old normal Japanese female infant.
作者：Anonymous 在 罕见奇谈 发贴, 来自 http://www.hjclub.org |
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