anomaly scan
A detailed ultrasound examination performed between 18-22 weeks of pregnancy to detect structural abnormalities in the developing fetus.
Full Definition
An anomaly scan, also known as a mid-pregnancy scan or morphology scan, is a comprehensive ultrasound examination typically performed between 18-22 weeks of gestation. This scan systematically evaluates fetal anatomy including the brain, spine, heart, kidneys, limbs, and other organs to identify structural abnormalities. The examination also assesses placental position, amniotic fluid levels, and fetal growth parameters. It represents a critical screening tool in prenatal care for detecting conditions that may require specialized management or intervention.
Usage
Usage note: Always lowercase unless beginning a sentence; hyphenate when used as an adjective.
In Context
- "The anomaly scan revealed a ventricular septal defect requiring pediatric cardiology consultation." — Ultrasound report
- "Patient counseling should emphasize that the anomaly scan cannot detect all fetal abnormalities." — Clinical documentation