Lobar holoprosencephaly associated with maternal diabetes mellitus – case report.

Holoprosencephaly is a brain abnormality resulting from an incomplete cleavage of the prosencephalon during early embryogenesis. Uncontrolled maternal diabetes mellitus is one of the strongest human teratogens and the most well-known cause of holoprosencephaly. We report a rare case of holoprosencephaly in a male fetus in a preexisting diabetic pregnancy. The diagnosis of the holoprosencephaly was established by ultrasound scan and MRI data. [ABSTRACT FROM AUTHOR]