With over 45 years of operations at OHSU, the cytogenetics laboratory provides full service cytogenetics testing for genetic counselors, geneticists, pathologists, and other physicians. Clinical indications for cytogenetic analysis include:

  • Cancer
  • high risk pregnancy
  • dysmorphic features
  • heart defects
  • short stature
  • infertility
  • recurrent pregnancy loss.

Our test menu encompasses analysis for many applications and our Medical Directors are always available to provide expert consultation to referring physicians.

Comprehensive cytogenetics testing can be performed on a variety of tissue types, including:

  • amniotic fluid
  • chorionic villi
  • bone marrow
  • blood
  • products of conception
  • skin biopsies and
  • tumors.

Our standard is a complete chromosome analysis from a patient’s cultured cells along with other appropriate tests to clarify the findings and interpretation. The lab is an international reference lab for syndromes such as Fanconi anemia.

Constitutional FISH

Knight Diagnostic Laboratories have extensive experience analyzing molecular abnormalities using fluorescent-in-situ-hybridization (FISH) techniques. We specialize in providing the most appropriate testing for our clients and their patients, and strive to implement the latest technologies. Our genetics menu includes FISH tests on fresh or cultured cells, as well as testing for disorders such as autism, developmental delay and multiple congenital anomalies. 


Client Services Department

Hours of Operation:  Monday - Friday 7am - 6pm Pacific Time