The authors report a case of holoprosencephaly with cyclopia, diagnosed prenatally at a gestational age of 19 weeks. The patient’s clinical history was normal, except for aspirin usage for her headache. The sonographic diagnosis was based on the intracranial finding of fused thalami with no visible midline structures and facial abnormalities, including cyclopia, proboscis, and absence of the nose. These findings are characteristic of alobar holoprosencephaly. With the informed consent of the patient, the pregnancy was terminated by induction after proper counseling. Postmortem examination of the abortus material confirmed the presence of cyclopia and a proboscis.
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