最終更新日：2022/12/24
Mongolian spots are produced by melanocyte leftovers that do not migrate into the epidermis; they remain deeper than usual in the lumbar-sacral region, resulting in blue coloration of the skin. Mongolian spots occur mainly on the buttocks and lower back, and occasionally on the abdomen, thighs, and arms. They occur in 90 percent of Blacks, 80 percent of Orientals and Native Americans, and 9 percent of Whites.
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元となった例文
Mongolian
spots
are
produced
by
melanocyte
leftovers
that
do
not
migrate
into
the
epidermis;
they
remain
deeper
than
usual
in
the
lumbar-sacral
region,
resulting
in
blue
coloration
of
the
skin.
Mongolian
spots
occur
mainly
on
the
buttocks
and
lower
back,
and
occasionally
on
the
abdomen,
thighs,
and
arms.
They
occur
in
90
percent
of
Blacks,
80
percent
of
Orientals
and
Native
Americans,
and
9
percent
of
Whites.
