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Genetic Screening Services

Memorial Hermann offers cancer risk assessments, genetic testing, education and counseling for individuals at high risk for hereditary cancers such as breast, ovarian, colorectal and endometrial cancers.

Oncologists and researchers at Memorial Hermann and The University of Texas Health Science Center at Houston (UTHealth) Medical School provide assessments and counseling for individuals who potentially have an inherited susceptibility to cancer.

What is Genetic Counseling?

Genetic counseling is defined by the National Society of Genetic Counselors as the process of helping people understand and adapt to the medical, psychological and familial assessment, counseling and genetic testing process.

Criteria have been published to help identify families who may benefit from a referral to genetic counseling. The genetic information summaries on genitourinary, gynecological, skin and breast cancers describe the clinical features of hereditary syndromes associated with these cancers.

Hereditary Cancer Features

The following are features that suggest hereditary cancer:

  • Unusually early age of cancer onset (e.g., premenopausal breast cancer).
  • Multiple primary cancers in a single individual (e.g., colorectal and endometrial cancer).
  • Bilateral cancer in paired organs, or multifocal disease (e.g., bilateral breast cancer or multifocal renal cancer).
  • Clustering of the same type of cancer in close relatives (e.g., mother, daughter and sisters with breast cancer).
  • Cancers occurring in multiple generations of a family.
  • Occurrence of rare tumors (e.g., retinoblastoma, adrenocortical carcinoma, granulosa cell tumor of the ovary, ocular melanoma, or duodenal cancer).
  • Unusual presentation of cancer (e.g., male breast cancer).
  • Uncommon tumor histology (e.g., epithelial ovarian cancer).
  • Rare cancers associated with birth defects (e.g., Wilms tumor and genitourinary abnormalities).
  • Geographic or ethnic populations known to be at high risk of hereditary cancers. Genetic testing candidates may be identified based solely on ethnicity when a strong founder effect is present in a given population (e.g., Ashkenazi heritage and BRCA1/BRCA2 mutations).