Which feature is NOT part of the facial dysmorphology in Fetal Alcohol Syndrome?

• A. Smooth philtrum
• B. Thin vermilion
• C. Short palpebral fissures
• D. Microcephaly

Answer: (D)

In fetal alcohol exposure, the facial features arise from disrupted early craniofacial development, producing a distinctive facial gestalt. The characteristic facial dysmorphologies are a smooth philtrum, a thin upper vermilion of the lip, and shortened palpebral fissures. Microcephaly, on the other hand, reflects reduced head size from overall brain growth impairment. While it can occur in fetal alcohol spectrum disorders, it is a brain/head size finding, not a facial feature. Therefore, microcephaly is not part of the facial dysmorphology.