hi there, i have a 4 year old daughter who has a simisn line on her right hand and she has extreme behavior problems, violent tantrums, will not accept any disapline a nursery or at home, she is very intelligent for her age but the nursery want to keep her back because of her behaviour and lack of concentration, she is adgitated all the time and very very stubborn, she has always been difficult but the older she gets the worse it is, i have done a online test for ADHD and she is on that spectrum but i am wondering if this is more related to her having a simian line, the simian line is genetic ( on her fathers side ) so if anybody could give me some help or advice i would be very gratefull. Thank you.
Single palmar creases are less common than two palmar creases, however 10% of the population have one palmar crease on one hand and 5% have one palmar crease on both hands. It is sometimes associated with Down's syndrome, though other physical symptoms would be manifest with this relatively rare syndrome.
Males are twice as likely as females to have this characteristic, and it tends to run in families. In its non-symptomatic form, it is more common among Asians and Native Americans than among other populations, and in some families there is a tendency to inherit the condition unilaterally, that is, on one hand only.
The presence of a single transverse palmar crease can be, but is not always, a symptom associated with abnormal medical conditions, such as fetal alcohol syndrome, or with genetic chromosomal abnormalities, including Down syndrome (chromosome 21), cri du chat syndrome (chromosome 5), Klinefelter syndrome, Noonan syndrome (chromosome 12), Patau syndrome (chromosome 13), Edward's syndrome (chromosome 18), and Aarskog-Scott syndrome (X-linked recessive). A unilateral single palmar crease was also reported in a case of chromosome 9 mutation causing multiple basal cell nevus syndrome and Robinow/brachydactyly 1 syndrome . It is also sometimes found on the hand of the affected side of patients with Poland Syndrome and craniosynostosis.
Although all of that sounds daunting, it did say it can be associated with something like these but is not always associated with it. In your shoes, I would have your child evaluated. Don't just struggle along with this alone or try to diagnose by doing tests on the Internet. See your pediatrician and ask about having your daughter assessed. You need to know if the difficulties are from something that can be named or if she is just being difficult.
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