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Nx Gen Sequencing: Megalencephalic Leukoencephalopathy with Subcortical Cysts Test

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Nx Gen Sequencing: Megalencephalic Leukoencephalopathy with Subcortical Cysts Test

Short Name: MLC Genetic Test

Also known as: MLC, Megalencephalic Leukoencephalopathy

Nx Gen Sequencing: Megalencephalic Leukoencephalopathy with Subcortical Cysts Test test available at DNA Labs India for ₹23,400. Uses NGS, Sanger sequencing on Whole blood samples. Results in 40 working days from sample receipt. Free home collection in 300+ cities across India.

Next-Generation Sequencing🏠 Home Collection

🩺 Medically Reviewed By

Overview

The purpose of Nx Gen Sequencing for MLC is to identify genetic mutations in the MLC1 and HEPACAM genes that cause Megalencephalic Leukoencephalopathy with Subcortical Cysts. This test aims to provide a definitive diagnosis, differentiate MLC from other neurological conditions, guide treatment strategies, and offer genetic counseling for families. It helps in understanding the genetic basis of symptoms such as macrocephaly, seizures, and developmental delays, enabling better disease management and informed decision-making.

Test Code
1346
Price
₹23,400
Sample Type
Whole blood
Result Time
40 working days from sample receipt
Fasting Required
No
Method
NGS, Sanger sequencing
Step 1

Sample Collection

Complete and sign the Whole Exome Sequencing Consent Form (Form 37). No specific fasting required, but consult with your healthcare provider for any medication adjustments.

Method: Venipuncture

Step 2

Laboratory Analysis

A blood sample will be drawn from a vein in your arm using standard venipuncture procedure. Inform the technician of any allergies or bleeding disorders.

Step 3

Report Delivery

Apply pressure to the puncture site with a cotton ball to stop bleeding. Avoid strenuous activity with the arm for a few hours. Results will be available after 40 working days.

Timeline: 40 working days from sample receipt

Patient Instructions

1
Before the Test:Complete the mandatory Whole Exome Sequencing Consent Form (Form 37). No fasting is required unless specified by your healthcare provider.
2
During the Test:A blood sample will be collected via venipuncture at a DNA Labs India center or through home collection service.
3
After the Test:Apply pressure to the puncture site. Await results online, via email, or WhatsApp after 40 working days.

About This Test

Who Should Get This Test

The purpose of Nx Gen Sequencing for MLC is to identify genetic mutations in the MLC1 and HEPACAM genes that cause Megalencephalic Leukoencephalopathy with Subcortical Cysts. This test aims to provide a definitive diagnosis, differentiate MLC from other neurological conditions, guide treatment strategies, and offer genetic counseling for families. It helps in understanding the genetic basis of symptoms such as macrocephaly, seizures, and developmental delays, enabling better disease management and informed decision-making.

How to Prepare

  • Collect 10 mL (5 mL min.) whole blood in 2 Lavender Top (EDTA) tubes.
  • Ship the sample refrigerated; do not freeze.
  • Ensure the consent form (Form 37) is duly filled and submitted with the sample.

Doctor's Notes

Reviewed by — MBBS, MD (Pathology) · Reg. No. 21521

"Early genetic diagnosis of MLC through Nx Gen Sequencing can aid in symptom management, family counseling, and accessing appropriate care resources."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeWhole blood
Sample Volume10 mL (5 mL min.)
ContainerLavender Top (EDTA) tubes
Collection MethodVenipuncture

Sample Stability

Room Temperature6 hours
Refrigerated72 hours
FrozenNot applicable
Sample Rejection Criteria:
  • Insufficient sample volume
  • Improper container (non-EDTA tubes)
  • Missing or incomplete consent form
  • Sample contaminated or hemolyzed

Understanding Your Results

Results from Nx Gen Sequencing for MLC indicate the presence or absence of pathogenic variants in the MLC1 and HEPACAM genes. A positive result confirms a diagnosis of Megalencephalic Leukoencephalopathy with Subcortical Cysts, while a negative result may suggest other causes. Genetic counseling is recommended to understand implications.
📊

Confirms diagnosis of MLC. Subtype identified based on gene affected.

Action: Consult a geneticist for management, family screening, and genetic counseling.

Result type: Pathogenic variant detected in MLC1 or HEPACAM

📊

MLC is less likely. Consider other neurological disorders or repeat testing if clinical suspicion remains.

Action: Follow up with neurologist for further evaluation.

Result type: No pathogenic variant detected

📊

Genetic change found but significance unclear. May require further analysis or family studies.

Action: Genetic counseling to discuss implications and potential reclassification.

Result type: Variant of uncertain significance (VUS)

⚠️ When to Consult a Doctor:

Consult a doctor if you or a loved one exhibits symptoms such as macrocephaly, seizures, developmental delays, movement problems, or other neurological signs. Early evaluation and genetic testing can aid in diagnosis and management.

Limitations

  • May not detect all possible genetic variants
  • Results require interpretation by genetic experts
  • False negatives possible in rare cases

Risks & Considerations

  • Minor bruising or pain at the puncture site
  • Rare risk of infection
  • Fainting or dizziness in some individuals

Interfering Factors

  • Poor sample quality
  • Contamination during collection
  • Inadequate sample volume

Frequently Asked Questions

What is Megalencephalic Leukoencephalopathy with Subcortical Cysts (MLC)?
MLC is a rare genetic disorder affecting the brain and spinal cord, characterized by macrocephaly, seizures, developmental delays, and progressive neurological symptoms. It is caused by mutations in genes like MLC1 or HEPACAM.
What are the common symptoms of MLC?
Common symptoms include early-onset macrocephaly, seizures, delayed motor development, problems with movement and coordination, speech difficulties, vision issues, behavioral problems, and cognitive impairment.
How is MLC diagnosed?
MLC is diagnosed through genetic testing, such as Nx Gen Sequencing, which analyzes the MLC1 and HEPACAM genes for mutations. Clinical evaluation and imaging (MRI) may also support diagnosis.
What is Nx Gen Sequencing?
Nx Gen Sequencing is an advanced genetic test using next-generation sequencing technology to analyze specific genes associated with disorders like MLC, providing accurate identification of causative mutations.
What is the cost of this test?
The Nx Gen Sequencing test for MLC costs INR 23400, which includes the test, genetic counseling, and support from DNA Labs India experts.
Is home sample collection available?
Yes, DNA Labs India offers free home sample collection for online bookings across numerous cities in India, enhancing accessibility for patients.
How long does it take to get results?
Results are typically delivered within 40 working days from the date of sample receipt, accessible online, via email, or WhatsApp.
What genes are tested in this panel?
The test analyzes the MLC1 and HEPACAM genes, which are responsible for most cases of Megalencephalic Leukoencephalopathy with Subcortical Cysts.
Who should consider getting this test?
Individuals experiencing symptoms of MLC, such as macrocephaly, seizures, or developmental delays, and those with a family history of the disorder should consider genetic testing.
Is genetic counseling included in the test cost?
Yes, the cost of INR 23400 includes genetic counseling and support from DNA Labs India's team of experts to help understand results and implications.
How accurate is this genetic test?
Nx Gen Sequencing is highly accurate in detecting pathogenic variants in the targeted genes, but accuracy depends on sample quality and genetic complexity. Results are verified through Sanger sequencing if needed.
What should I do after receiving test results?
Consult a geneticist or neurologist to interpret results, discuss management options, and consider family screening. Genetic counseling is recommended for all cases.
Worried about the process? Our certified phlebotomists collect thousands of samples every month across India. The process takes under 5 minutes and is virtually painless. Questions? Message us on WhatsApp — we're here 7 days a week.

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