About Us 2018-02-08T20:36:31+00:00

CDx Diagnostics

CDx Diagnostics™ is the world’s leader in the detection and prevention of cancers of the esophagus, oral cavity, pharynx, and larynx. Our tests are primarily used to help prevent cancer before it can start by identifying still-harmless dysplasias (precancers),and are also used to identify early stage cancers when they can be most easily cured. Clinicians use CDx® patented brush biopsy instruments to non-invasively collect a broad, full thickness tissue specimen of a suspect lesion. This unique tissue specimen is then subjected to specialized, computer-assisted laboratory analysis. These life saving tests are nationally available to gastroenterologists, otolaryngologists, oral surgeons, periodontists, and dentists.

Proprietary Sampling Technology

CDx Diagnostics™ utilizes patented CDx® Technology – a combination of a minimally invasive “brush” biopsy with proprietary tissue analysis technologies and specially trained pathologists to increase the detection of the precursors of oral, laryngeal and esophageal cancer. Although these cancers can be prevented when detected at the precursor (i.e., dysplastic) stage, they historically have had some of the lowest survival rates of any cancers due to late detection and the limitations of conventional diagnostic methods.

Today, clinicians use CDx® patented brush biopsy instruments to non-invasively collect a wide area, disaggregated tissue specimen of the entire thickness of the suspect epithelium. This unique tissue specimen is then subjected to specialized, computer-assisted laboratory analysis.

Advanced Imaging & Analysis

The high sensitivity of the CDx tests is due to the proprietary computer imaging system that is based on an algorithm developed as part of the “Star Wars” missile defense program. This neural network performs sophisticated tests on every cell on the slide, allowing any sign of potential abnormality to be caught at the earliest possible stage. The approximately 200 most “suspicious” cells are then flagged for the pathologists as a starting point for analysis. The pathologists make the diagnosis, and the result is then delivered in the form of a brush biopsy report.

Over 500,000 of these life saving tests have been performed nationally by gastroenterologists, otolaryngologists, oral surgeons, periodontists, and dentists; resulting in the thousands of dysplasias being identified and removed before cancer could start.


Mark RutenbergFounder & Chief Executive Officer
Mark Rutenberg has devoted the last 20 years to the development, management and marketing of medical diagnostics, with particular concentration in application of advanced digital image processing techniques to anatomic pathology. Read more
Jim HutchinsonPresident & Chief Operating Officer
James H. Hutchinson has over 27 years of senior-level experience within the clinical and anatomic reference laboratory industry. He is an experienced, hands on senior laboratory executive with proven operational and project management skills. Mr. Hutchinson has extensive laboratory information technology development and management experience. Read more
Jimmy CerveauxChief Financial Officer
Jimmy Cerveaux is an experienced C-level executive with deep financial expertise acquired at blue chip companies and as an entrepreneur. Jimmy co-founded, led and sold Unicity Eldercare, a successful 150 employee healthcare company located in NY & NJ. Read more
Frank Fromowitz, MDLaboratory Director
Dr. Frank Fromowitz has over 35 years of experience as an anatomic pathologist in academic, community hospital, and private laboratory settings, including work in the pathology of the gastrointestinal tract. He trained in Anatomic Pathology at Yale University School of Medicine, held full time academic appointments at the state universities of New York and New Jersey, and published over 50 articles in peer reviewed journals, including the New England Journal of Medicine and Cancer. Read more
Drore Eisen, MD, DDSCo-Founder, Vice President & Medical Director
Drore Eisen is a dual trained dermatologist and dentist with expertise in diseases of the oral cavity. He received his B.A. from Columbia University, dental and medical degrees from the Medical College of Virginia and completed his dermatology training at the University of Michigan where he served as chief resident. Read more
Tom BartelExecutive Vice President of Sales
Tom Bartel joined CDx Diagnostics in June 2015 with more than two decades of results-driven commercial diagnostics expertise and a demonstrated track record of building winning sales organizations, commercializing novel assays, and accelerating product adoption in key markets. Read more
Jerry ConwayExecutive Vice President of Managed Care
Mr. Conway is a proven Managed Care Executive providing sales and marketing leadership for US commercial and government payer contracting sales, strategy and tactics for companies such as Metamark Genetic, Foundation Medicine, Genzyme Genetics and Corning Metpath. Read more
Robert TjonVice President of Engineering
Robert received an undergraduate degree in Physics from Fordham University, a Bachelor’s and Master’s Degree in Electrical Engineering from Columbia University, in a relative short time span of 6 years. In 1988, he worked as a Research Associate with Dr Leopold Koss at Montefiore Hospital to develop classifiers Read more