Beare-Stevenson w/ cutis gyrata : FGFR2 Targeted Analysis

Test Information

For patients with suspected Beare-Stevenson syndrome, exon 9 of FGFR2 is sequenced. This anlaysis must be ordered specifically and is billed serparately than FGFR2 analysis for the other craniosynostosis disorders.

Turnaround Time

2 weeks

CPT Code(s)

81404

Cost

$500

Genes

  • FGFR2

Clinical Information

Beare Stevenson with cutis gyrata patients will have delayed development, acanthosis nigricans of the hands, feet and genital areas along with the cutis gyrata.

Indications

Molecular testing is useful to confirm the diagnosis and to identify the disease causing mutations within a family to allow for carrier testing and prenatal diagnosis.

Methodology

Sanger sequencing of selected exons

Specimen Requirements

The preferred sample type is peripheral blood collected in an EDTA (purple top) tube – at least 2-3ml for pediatric patients and 5-6ml for adult patients. Extracted DNA, dried blood spots, and saliva are also accepted for this test. Saliva samples must be submitted in an approved saliva kit. Contact the lab to receive a saliva kit or to have one sent to your patient.

Transport Instructions

The specimen should be kept at room temperature and delivered via overnight shipping. If shipment is delayed by one or two days, the specimen should be refrigerated and shipped at room temperature. Do not freeze the specimen. Samples collected on Friday can be safely designated for Monday delivery.

Prenatal Testing Information

Prenatal diagnosis is available if the familial mutations are known or there are clinical features identified via ultrasound suggestive of a diagnosis in the fetus. Additional fees for cell culture and maternal cell contamination may apply. Maternal cell contamination studies are required for all prenatal molecular tests. Contact the laboratory prior to sending a prenatal specimen.

Have Questions? Need Support?

Call our laboratory at 1-800-473-9411 or contact one of our Laboratory Genetic Counselors for assistance.
Robin Fletcher, MS, CGC
Falecia Thomas, MS, CGC

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