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The Definitive Guide to Your Anomaly Scan (TIFFA Scan)

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Pregnancy is a journey filled with important milestones, and one of the most crucial among them is the Anomaly Scan, also known as the TIFFA scan (Targeted Imaging for Fetal Anomalies). This detailed ultrasound examination plays a vital role in assessing your baby’s structural development and overall well-being. When performed by experienced specialists offering Anomaly Scan in Chennai, it helps ensure accurate evaluation, early detection, and informed pregnancy care.


This definitive guide explains everything you need to know about the anomaly scan—what it is, when it is done, what it checks, and how to prepare.


What Is an Anomaly Scan (TIFFA Scan)?

An anomaly scan is a detailed second-trimester ultrasound that carefully examines the baby’s organs, bones, and overall anatomy. Unlike routine scans, the TIFFA scan focuses on identifying structural abnormalities that may affect the baby’s health before or after birth.

It does not diagnose genetic conditions but can detect physical markers that may require further evaluation.


When Is the Anomaly Scan Done?

The ideal time for an anomaly scan is between 18 and 22 weeks of pregnancy.

  • Before 18 weeks, some organs may not be fully developed

  • After 22 weeks, visualization may be limited and management options may change

Scheduling your Anomaly Scan Chennai appointment within this window ensures the most accurate assessment.


Why Is the Anomaly Scan Important?

The anomaly scan is a cornerstone of prenatal care because it:

  • Detects major structural abnormalities early

  • Evaluates the development of vital organs

  • Helps plan further investigations or follow-up care

  • Provides reassurance when results are normal

Early detection allows timely referral to fetal medicine specialists when needed.


What Does the Anomaly Scan Check?

During a TIFFA scan, the specialist carefully evaluates:


Brain and Spine

  • Brain structures and ventricles

  • Spinal alignment and closure

  • Screening for neural tube defects


Face and Neck

  • Facial profile

  • Upper lip (cleft lip screening)

  • Neck region


Heart

  • Four heart chambers

  • Major blood vessels

  • Cardiac position and rhythm


Abdomen and Internal Organs

  • Stomach position

  • Kidneys and bladder

  • Liver and bowel


Limbs and Skeletal System

  • Arms, legs, hands, and feet

  • Bone length and symmetry

  • Fetal movements


Placenta and Amniotic Fluid

  • Placental location

  • Amount of amniotic fluid

  • Umbilical cord insertion


How Is the Anomaly Scan Performed?

The scan is performed using ultrasound imaging:

  • Conducted over the abdomen

  • Takes approximately 30–45 minutes

  • Completely non-invasive and safe

  • No fasting required

Sometimes, the baby’s position may limit visibility, and a repeat scan may be advised.


How to Prepare for Your Anomaly Scan

Here’s a simple preparation checklist:

  • Eat normally; fasting is not required

  • Wear comfortable, loose clothing

  • Carry previous scan reports and test results

  • Arrive on time and be prepared for a detailed examination

A full bladder is usually not necessary at this stage.


What the Anomaly Scan Can and Cannot Detect


It Can:

  • Identify many major structural abnormalities

  • Assess organ development and fetal growth

  • Detect markers that suggest further testing


It Cannot:

  • Detect all genetic or chromosomal conditions

  • Guarantee that the baby will have no medical issues

  • Replace genetic screening or diagnostic tests

The anomaly scan is most effective when combined with earlier screening tests.


What Happens If an Abnormality Is Found?

If the scan identifies a concern:

  • You may be referred for a targeted or repeat ultrasound

  • Additional tests like fetal echocardiography, NIPT, or amniocentesis may be suggested

  • Genetic counselling and specialist guidance are provided

Many findings are minor, and early detection allows better monitoring and planning.


Why Choose Specialists for Anomaly Scan in Chennai?

An anomaly scan requires both advanced technology and expert interpretation. Choosing experienced providers ensures:

  • High-resolution imaging

  • Accurate and standardized assessment

  • Clear explanation of findings

  • Access to comprehensive follow-up care

Expertise significantly improves diagnostic confidence.


Conclusion

The anomaly (TIFFA) scan is a vital step in ensuring your baby’s healthy development. By providing a detailed assessment of fetal anatomy at the right time, it allows early identification of concerns and informed pregnancy management. Opting for expert Anomaly Scan Chennai services ensures accuracy, reassurance, and compassionate care—supporting a safer and more confident pregnancy journey.


FAQs

1. Is the anomaly scan mandatory?

While not legally mandatory, it is strongly recommended as part of routine prenatal care.


2. Is the TIFFA scan safe?

Yes. It uses ultrasound technology and is completely safe for both mother and baby.


3. How long does the anomaly scan take?

Typically 30 to 45 minutes, depending on fetal position.


4. Can the anomaly scan detect Down syndrome?

It may show markers but cannot confirm chromosomal conditions. Further tests are needed for diagnosis.


5. What if the baby is not in the right position?

You may be asked to change position or return for a repeat scan.


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