Hereditary Hemorrhagic Telangiectasia and Vascular Malformations Gene Panel, Varies
Use
Providing a genetic evaluation for patients with a personal or family history suggestive of hereditary hemorrhagic telangiectasia (HHT), cerebral cavernous malformation (CCM), capillary malformation-arteriovenous malformation syndrome (CV-AVM), or other hereditary vascular malformation syndromes of germline origin. Establishing a diagnosis of HHT, CCM, CM-AVM, or other hereditary vascular malformation syndromes of germline origin.
Special Instructions
Not provided.
Limitations
Next-generation sequencing may not detect all types of genomic variants. In rare cases, false-negative or false-positive results may occur. There may be regions of genes that cannot be effectively evaluated by sequencing or deletion and duplication analysis due to technical limitations of the assay, including regions of homology, high guanine-cytosine (GC) content, and repetitive sequences. This test is validated to detect 95% of deletions up to 75 base pairs (bp) and insertions up to 47 bp. Some aspects of the test may not perform as well when using saliva or blood spot samples compared to whole blood.
New York Approved
Methodology
NGS (Targeted)
Biomarkers
LOINC Codes
- 51966-0 - Gene dis DNA anl Pnl
- 62364-5 - Test performance info Spec
- 31208-2 - Specimen source
- 50397-9 - Mol dx interp Bld/T Ql
- 82939-0 - Genetic variant details Bld/T
- 69047-9 - Geneticist review
- 99622-3 - Patient resource info
- 48767-8 - Annotation comment Imp
- 85069-3 - Lab test method
- 48018-6 - Gene studied ID
- 18771-6 - Provider signing name
Result Turnaround Time
14-21 days
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
3 mL
Minimum Volume
Not provided
Container
Lavender top (EDTA) or yellow top (ACD); Acceptable: Green top (Sodium heparin)
Collection Instructions
Invert several times to mix blood. Send whole blood specimen in original tube. Do not aliquot.
Patient Preparation
A previous bone marrow transplant from an allogenic donor will interfere with testing.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 4 days |
| Refrigerated | 4 days |
| Frozen | 4 days |