The First Known Case Report of a Novel Homozygous Nonsense Variant in the OSBPL9 Gene Associated With Fetal Cerebral Ventriculomegaly, Cerebellar Hypoplasia, and Arthrogryposis Multiplex.

Summary: Imagine a baby growing in the womb, but their brain and joints aren't developing quite right. Doctors recently discovered this happening to a baby and found the hidden cause: a tiny spelling mistake in a specific gene called OSBPL9. This gene usually helps cells move important fats around, but because both parents passed down the same broken copy, the baby's brain had extra fluid, the back of the brain was too small, and the joints were stuck in bent positions. This is the very first time scientists have linked this exact gene change to these severe health problems, giving families and doctors a new clue for solving medical genetic mysteries.