I recently found out that it is relatively rare to have a single transverse palmar crease present in either (or both) hands.
I have one crease on my right hand, but two on the left. Apparently 10% of the population have a single crease on one hand and 5% have a single crease on both hands.
This "condition" has links with a lot of genetic conditions:
Are you affected?
I have one crease on my right hand, but two on the left. Apparently 10% of the population have a single crease on one hand and 5% have a single crease on both hands.
This "condition" has links with a lot of genetic conditions:
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 .[5] It is also sometimes found on the hand of the affected side of patients with Poland Syndrome and craniosynostosis.
Are you affected?