Hematology

Andrew Feldman, M.D., discusses the different tools and techniques Mayo Clinic Laboratories uses to accurately diagnose and classify T-cell lymphomas to help provide clinicians with the diagnostic answers they need to treat their patients.

Mayo Clinic’s Advanced Diagnostics Laboratory (ADL) is a visionary space designed to foster innovation. The ADL has a direct impact on patient lives, bringing promising tests and services to patients at Mayo and around the world.

For patients with chronic lymphocytic leukemia (CLL) — the most common leukemia in adults — advanced testing can not only provide valuable information about their disease state, but peace of mind in the face of a progressive, incurable illness. Oftentimes, however, complex molecular and genetic tests to identify biomarker cues about disease trajectory and treatment intolerance are not performed, putting patients at risk for unmet expectations and unsatisfactory outcomes.

Meera Sridharan, M.D., Ph.D., explains Mayo Clinic Labs’ testing approach for atypical hemolytic uremic syndrome (aHUS). The serological complement panel examines nine analytes to gain a thorough understanding of the complement cascade to confirm diagnosis and direct care.

The assay is now recommended for diagnosing and monitoring patients with monoclonal protein disorders and exclusively available through Mayo Clinic Laboratories– Rochester.

Thank you to our staff at Mayo Clinic who step up daily during this time of need to provide access to testing during the global pandemic. We appreciate each one of you and all the sacrifices you personally have made throughout this past year.

A study involving Mayo Clinic investigators that examined new approaches to the diagnosis of heparin-induced thrombocytopenia has been met with enthusiasm in the scientific community.

Xinjie Xu, Ph.D., co-director of Mayo's Genetics and Genomics Laboratory, explains Mayo Clinic Laboratories' updated approach to testing for risk stratification of patients newly diagnosed with plasma cell proliferative disorders, such as multiple myeloma. Based on recently published data, the new testing algorithms focus on use of fluorescence in situ hybridization (FISH) panels, rather than chromosome studies.

In this month’s “Hot Topic,” James Hoyer, M.D., discusses the importance of using a control tube during osmotic fragility testing.

Min Shi, M.D., Ph.D., a hematologist and co-director of Mayo Clinic's Flow Cytometry Laboratory, explains recent updates to the B-cell lymphoblastic leukemia minimal residual disease flow cytometry assay. This test is used to identify minimal residual disease in patients with a previously confirmed diagnosis of B-cell lymphoblastic leukemia who have completed chemotherapy, immunotherapy or bone marrow transplantation.

The results are part of a comprehensive study of 16,175 cases performed at Mayo Clinic over an 11-year period.

Horatiu Olteanu, M.D., Ph.D., gives an overview of the new T-cell receptor (TCR) β-chain constant region (TRBC1) flow cytometry marker, which is now included in Mayo Clinic Laboratories' routine diagnostic T-cell flow cytometry panel. He discusses when this testing should be ordered, how the addition of TCRBC1 compares to previous testing approaches, and how this marker can assist ordering physicians.

Matt Millen, ex-pro NFL player, who played on four Super Bowl-winning teams underwent a nearly six-year medical journey in search for answers. Finally, he was diagnosed with amyloidosis using a new testing methodology at Mayo Clinic.