Hereditary Papillary Renal Carcinoma (MET proto-oncogene Known Mutation)
- LIS Mnemonic: MBHPRCPT
Collect
Collect whole blood in a purple top (EDTA) tube.
Volume Required
5 ml
Minimum Required
3 ml
Transport
Refrigerate sample until shipment. Send the sample at room temperature with overnight delivery for receipt Monday through Friday within 24 hours of collection.
Stability
Whole blood can be refrigerated until shipment.
Unacceptable conditions
Heparinized specimens, severely hemolyzed specimens, frozen, clotted or possibly commingled specimens, blood in non-sterile or leaky containers, mislabeled or inappropriately labeled specimens.
Specimen Handling
Do not heat, freeze or centrifuge blood before shipment. Refrigerate sample until shipment.
Days Performed
Mon - Fri 9:00am to 4:00pm
Reported
2-3 weeks
CPT
81479
Disease Information
Clinical Features:
Hereditary papillary renal carcinoma (HPRC) is a form of inherited kidney cancer characterized by a pre-disposition to develop multiple, bilateral type I papillary renal tumors. HPRC is histologically and genetically distinct from other causes of inherited renal carcinoma such as Birt-Hogg-Dube syndrome, hereditary leiomyomatosis and renal carcinoma, and Von-Hippel-Lindau Disease.
Molecular Genetics:
The MET gene is located on chromosome 7q31.1-.34. The inheritance pattern is consistent with autosomal dominant transmission with reduced penetrance. Missense mutations found in HPRC families occur in exons 16, 17, 18 and 19 of the MET proto-oncogene (which encodes the tyrosine kinase domain of the protein).
Test Methods:
Sequence analysis of the mutation previously identified in a family member will be performed.
Detection Rate:
The analytical sensitivity of this assay is close to a 100%.
Results:
Test results with interpretation will be mailed and/or faxed to the referring physician or send out lab following completion of the test. Additional reports will be provided as requested.
Utility:
The clinical utility of the assay includes confirmation of a clinical diagnosis, establishing the need for continued clinical surveillance of the patient, and facilitating pre-symptomatic testing of at risk relatives.
Remarks
Whole blood in EDTA purple top tubes is the preferred sample. High molecular weight genomic DNA, cheek epithelial cells, or other samples containing DNA may be acceptable. Contact the laboratory for specific instructions regarding such samples before sending the sample.
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