fbpx
QUESTIONS? CALL (202)-802-8877

Endometrial Cancer Comprehensive Panel

Diseases Targeted:

Hereditary Endometrial Cancer

Overview:

The Endometrial Cancer Comprehensive Panel examines 11 genes associated with an increased risk for hereditary endometrial cancer.

Who is this test for?

Patients with a personal or family history suggestive of a hereditary endometrial cancer syndrome, which may include breast, colorectal, and other cancers. Red flags for hereditary endometrial cancer could also include onset of cancer prior to the age of 50 years, more than one primary cancer in a single person, and multiple affected people within a family. This test is designed to detect individuals with a germline pathogenic variant, and is not validated to detect mosaicism below the level of 20%. It should not be ordered on tumor tissue.

What are the potential benefits for my patient?

Patients identified with hereditary endometrial cancer can benefit from increased surveillance and preventative steps to better manage their risk for cancer. Also, your patient’s family members can be tested to help define their risk. If a pathogenic variant is identified in your patient, close relatives (children, siblings, parents) could have as high as a 50% risk to also be at increased risk.

Order Options

Sequencing (included)
Del/Dup (included)

 

Genes

BRCA1, BRCA2, EPCAM, MLH1, MSH2, MSH6, MUTYH, PMS2, POLD1, PTEN, TP53 ( 11 genes )

Coverage:

99% at 50x

Specimen Requirements:

Blood (two 4ml EDTA tubes, lavender top) or Extracted DNA (3ug in EB buffer) or Buccal Swab or Saliva (kits available upon request)

Test Limitations:

Test results and variant interpretation are based on the proper identification of the submitted specimen and use of correct human reference sequences at the queried loci. In very rare instances, errors may result due to mix-up or co-mingling of specimens. Positive results do not imply that there are no other contributions, genetic or otherwise, to the patient's phenotype, and negative results do not rule out a genetic cause for the indication for testing. Result interpretation is based on the collected information and Alamut annotation available at the time of reporting. This assay is not designed or validated for the detection of mosaicism. DNA alterations in regulatory regions or deep intronic regions (greater than 20bp from an exon) will not be detected by this test. There are technical limitations on the ability of DNA sequencing to detect small insertions and deletions. Our laboratory uses a sensitive detection algorithm, however these types of alterations are not detected as reliably as single nucleotide variants. Rarely, due to systematic chemical, computational, or human error, DNA variants may be missed. Although next generation sequencing technologies and our bioinformatics analysis significantly reduce the confounding contribution of pseudogene sequences or other highly-homologous sequences, sometimes these may still interfere with the technical ability of the assay to identify pathogenic variant alleles in both sequencing and deletion/duplication analyses. Deletion/duplication analysis can identify alterations of genomic regions which are a single exon in size. When novel DNA duplications are identified, it is not possible to discern the genomic location or orientation of the duplicated segment, hence the effect of the duplication cannot be predicted. Where deletions are detected, it is not always possible to determine whether the predicted product will remain in-frame or not. Unless otherwise indicated, in regions that have been sequenced by Sanger, deletion/duplication analysis has not been performed.

Patients with Bone Marrow Transplants:
DNA extracted from cultured fibroblasts should be submitted instead of blood/saliva/buccal samples from individuals who have undergone allogeneic bone marrow transplant and from patients with hematologic malignancy.

Gene Specifics:

Gene Notes
MSH2 Inversion of MSH2 exons 1-7 ("Boland" inversion) is assessed for Lynch Syndrome, Colorectal, Endometrial, and Prostate Cancer Panel testing (for both Focus and Comprehensive Panels) as well as Comprehensive Gastric Cancer Panel testing. Unless otherwise specified, this testing is not performed for other cancer panels, but is available upon request.

CPT Codes:

CPT Code 81445, 81479

NOTE: The CPT codes listed on the website are in accordance with Current Procedural Terminology, a publication of the American Medical Association. CPT codes are provided here for the convenience of our clients. Clients who bill for services should make the final decision on which codes to use.

Gene Descriptions:

Gene Reason Reference
BRCA1 Heterozygous pathogenic variants in the BRCA1 gene are the most common cause of hereditary breast and ovarian cancer syndrome (HBOC). An association with endometrial cancer remains controversial, and additional research is needed. PubMed: 211193698, 2300148, 25756400
BRCA2 Autosomal dominant mutations in the BRCA2 gene are implicated in the hereditary breast and ovarian cancer syndrome (HBOC). Additionally, biallelic mutations in BRCA2 gene are associated with autosomal recessive Fanconi anemia Types B and D1 . An association with endometrial cancer remains controversial, and additional research is needed. PubMed: 211193698, 2300148, 25756401
MSH6 Autosomal dominant pathogenic variants in MSH6 are associated with Hereditary Non-Polyposis Colorectal Cancer (HNPCC), also known as Lynch Syndrome. Biallelic pathogenic variants have been associated with constitutional mismatch repair deficiency syndrome (CMMRD). PubMed: 20301390, 22692065; OMIM: 120436
EPCAM Heterozygous pathogenic variants in the EPCAM gene cause Hereditary Non-Polyposis Colorectal Cancer (HNPCC), also known as Lynch Syndrome, which increases the risk for endometrial cancer. PubMed: 20301390, 23462293
MLH1 While heterozygous pathogenic variants in MLH1 are associated with Hereditary Non-Polyposis Colorectal Cancer (HNPCC), also known as Lynch Syndrome, biallelic pathogenic variants have been associated with constitutional mismatch repair deficiency syndrome (CMMRD). PubMed: 20301390, 22692065; OMIM: 120436
MSH2 Heterozygous pathogenic variants in MSH2 are associated with Hereditary Non-Polyposis Colorectal Cancer (HNPCC), also known as Lynch Syndrome. Biallelic pathogenic variants have been associated with constitutional mismatch repair deficiency syndrome (CMMRD). PubMed: 20301390, 22692065; OMIM: 120436
PMS2 Heterozygous pathogenic variants in PMS2 are associated with Hereditary Nonpolyposis Cancer Syndrome (HNPCC), also known as Lynch syndrome. PMS2 is the least common of the mismatch repair genes that cause HNPCC, accounting for less than 5% of cases. Biallelic pathogenic mutations in PMS2 have been associated with constitutional mismatch repair deficiency syndrome (CMMRD). PubMed: 20301390, 22692065
POLD1 Heterozygous pathogenic variants in POLD1 have been associated with colorectal cancer and other adenomas including endometrial and breast. PubMed: 24509466, 23263490
PTEN Individuals with heterozygous pathogenic PTEN variants are at a significantly increased risk for multiple types of cancers, including breast, thyroid, colorectal, endometrial, renal, and others. Autosomal dominant mutations in PTEN have been associated with a spectrum of disorders sometimes referred to as PTEN hamartoma tumor syndrome. PHTS includes several conditions with overlapping clinical features, including Bannayan-Riley-Ruvalcaba syndrome (BRRS), Cowden syndrome (CWS1), macrocephaly/autism syndrome, and PTEN-related Proteus syndrome (PS). PubMed: 20301661; OMIM: 601728
TP53 Heterozygous pathogenic variants in the TP53 gene are associated with Li-Fraumeni syndrome, a condition that increases risk for many types of cancer, including endometrial. PubMed: 20301488, 26014290, 2614290; OMIM: 151623, 191170
TOP