[Confrontation between ultrasound and fetopathological examination following therapeutic abortion performed in a maternity clinic in Tunisia]. / Confrontation échographique et fœtopathologie après interruption thérapeutique de grossesse dans une maternité Tunisienne de référence.

This study aims to evaluate the value of prenatal ultrasound diagnosis by comparing it with the results of the fetopathological examination in case of therapeutic interruption of pregnancy for fetal indication. We conducted a retrospective descriptive and analytical study carried out over a three-year period from January 2013 to December 2015. It involved 66 fetuses autopsied after therapeutic interruption of pregnancy for fetal indication. Fetopathological examination confirmed ultrasound results in 63 cases (95.4%). In 18 cases (27.2%) there was a full match between the results of the prenatal diagnosis and those of the autopsy. Nine percent of fetal malformations were detected in the first trimester. The majority of malformations (72%) were detected in the second timester. Neurological malformations were the most frequent (60%), dominated by hydrocephalus and anencephaly. This study shows that, in our clinical context, even if ultrasound diagnosis is often non-exhaustive, its signs indicating the need for interruptions of pregnancy are correct. Fetopathological examination is used, in this case, to detect unknown malformations, making it possible to specify the diagnosis and to implement a strategy for subsequent pregnancies.