Williams Syndrome FISH Test: Comprehensive Genetic Diagnosis
Understanding Williams Syndrome and FISH Testing
Williams Syndrome FISH testing represents a critical advancement in genetic diagnostics, providing definitive identification of a rare neurodevelopmental disorder caused by a microdeletion on chromosome 7. This sophisticated testing methodology offers unparalleled accuracy in detecting the specific genetic abnormalities associated with Williams Syndrome, enabling healthcare providers to deliver targeted interventions and comprehensive care management strategies.
What Does the Williams Syndrome FISH Test Detect?
The Williams Syndrome FISH Test specifically identifies the deletion of approximately 26-28 genes from the long arm of chromosome 7 (7q11.23 region). This deletion includes the elastin gene (ELN), whose absence contributes to many of the characteristic features of Williams Syndrome, particularly cardiovascular abnormalities and connective tissue issues. The test utilizes Fluorescence In Situ Hybridization technology to visualize and confirm the presence or absence of this critical genetic region.
- Detection of 7q11.23 chromosomal microdeletion
- Confirmation of elastin gene deletion
- Identification of associated gene deletions in the Williams Syndrome critical region
- Chromosomal mapping of the affected area
Who Should Consider Williams Syndrome FISH Testing?
This genetic test is recommended for individuals displaying characteristic symptoms or clinical features suggestive of Williams Syndrome. Early diagnosis through FISH testing can significantly impact treatment outcomes and quality of life.
Clinical Indications and Symptoms
- Infants and children with distinctive facial features (elfin facies)
- Individuals with supravalvular aortic stenosis or other cardiovascular abnormalities
- Children exhibiting developmental delays and intellectual disability
- Patients with hypercalcemia in infancy
- Individuals displaying extreme sociability and empathy (“cocktail party” personality)
- Those with connective tissue abnormalities and joint limitations
- Children with growth deficiencies and feeding difficulties
- Individuals with family history of Williams Syndrome
Comprehensive Benefits of Williams Syndrome FISH Testing
Undergoing Williams Syndrome FISH testing provides numerous advantages for patients, families, and healthcare providers, facilitating informed decision-making and personalized care approaches.
Key Advantages
- Definitive Diagnosis: Provides conclusive evidence of Williams Syndrome, eliminating diagnostic uncertainty
- Early Intervention: Enables timely implementation of therapeutic interventions and educational support
- Family Planning: Offers valuable information for genetic counseling and reproductive decision-making
- Medical Management: Guides appropriate monitoring for cardiovascular, endocrine, and developmental concerns
- Prognostic Information: Helps predict potential health complications and developmental trajectories
- Research Contribution: Supports ongoing genetic research and understanding of neurodevelopmental disorders
Understanding Your Test Results
Interpreting Williams Syndrome FISH test results requires professional genetic counseling and medical expertise. Our comprehensive reporting system ensures clear communication of findings and appropriate follow-up recommendations.
Result Interpretation Guidelines
- Positive Result: Confirms the presence of 7q11.23 deletion, establishing Williams Syndrome diagnosis
- Negative Result: Indicates absence of the specific deletion, though clinical evaluation remains important
- Inconclusive Result: May require additional testing or repeat analysis
- Mosaic Pattern: Suggests presence of both normal and abnormal cells, requiring specialized interpretation
All positive results are accompanied by detailed genetic counseling sessions to ensure complete understanding and appropriate next steps. Our genetic specialists provide comprehensive support throughout the diagnostic journey.
Test Details and Pricing
| Test Parameter | Details |
|---|---|
| Test Name | Williams Syndrome FISH Test |
| Regular Price | $176 USD |
| Discount Price | $132 USD |
| Turnaround Time | 3-4 Days |
| Sample Type | Peripheral blood / Amniotic fluid / Chorionic villi / Cord blood |
| Test Components | Sterile container / Sterile Normal Saline Container / Sodium heparin Vacutainer (2ml) |
| Pre-test Instructions | Requires Doctor’s prescription (not applicable for surgery, pregnancy cases, or international travel planning) |
Nationwide Testing Availability
We maintain comprehensive testing facilities across the United States, ensuring accessible genetic diagnostics for patients in all major metropolitan areas. Our state-of-the-art laboratories in New York, Los Angeles, Chicago, Houston, Phoenix, and other key cities provide consistent, high-quality testing services with rapid turnaround times.
Convenient Testing Locations
- Multiple collection centers in every major city
- Expert phlebotomy services for comfortable sample collection
- Coordinated sample transport to centralized testing facilities
- Secure electronic result delivery system
- Telemedicine genetic counseling options available
Take Action Today: Schedule Your Williams Syndrome FISH Test
Don’t let uncertainty about genetic conditions delay proper diagnosis and treatment. Our Williams Syndrome FISH testing provides the clarity needed for effective medical management and improved quality of life. With our discounted price of $132 USD and rapid 3-4 day turnaround, you can obtain definitive answers quickly and affordably.
Call or WhatsApp us today at +1(267) 388-9828 to schedule your appointment or discuss testing options with our genetic specialists. Our team is ready to assist you with compassionate, expert care and comprehensive testing services.
Early diagnosis through Williams Syndrome FISH testing can make a significant difference in treatment outcomes and long-term prognosis. Trust our experienced genetic testing professionals to provide accurate, reliable results and comprehensive support throughout your diagnostic journey.

