In this month's "Hot Topic," David Murray, M.D., Ph.D., reviews the role of urine testing for monoclonal gammopathies and discusses Mayo Clinic’s use of MASSFIX to replace traditional immunofixation testing.

In this month's "Hot Topic," Eoin Flanagan, M.B., B.Ch., reviews the recent diagnostic criteria for Myelin Oligodendrocyte Glycoprotein Antibody-associated Disease (MOGAD).

In this "Hot Topic," Melissa Snyder, Ph.D., provides a brief review of published guidelines for the diagnosis of celiac disease, with a specific focus on the role of laboratory testing.

In this month's "Hot Topic," Christopher Klein, M.D., and Zhiyv (Neal) Niu, Ph.D., discuss how Mayo Clinic’s neuropathy and neuromuscular gene panels have enhanced patient care.

In this month's "Hot Topic," Eoin Flanagan, M.B., B. Ch., discusses the important issue of autoimmune encephalitis misdiagnosis and identifies red flags that be useful in clinical practice to suggest alternative diagnoses and highlight antibodies that sometimes cause confusion.

In this month's "Hot Topic," Elitza Theel, Ph.D., shares the recommended approach to serologic testing for assessment or infection with coccidioides.

PACEIn this month’s “Virtual Lecture” Eoin Flanagan, M.D., B.Ch., reviews how to diagnose autoimmune encephalitis, what to watch that may suggest a different diagnosis, discuss neural autoantibodies interpretation and putting test results into clinical context.

In this month's "Hot Topic," Linnea Baudhuin, Ph.D., discusses Mayo Clinic Laboratories’ up-to-date gene panel tests for cardiomyopathies and arrhythmias, connective tissue and vascular fragility disorders, dyslipidemias, and congenital heart disease.

In this month's "Hot Topic," Melissa Snyder, Ph.D., co-director of the antibody immunology laboratory at Mayo Clinic, discusses celiac disease and the role of diagnostic testing algorithms.

In this month's "Hot Topic," Kevin Halling, M.D., Ph.D., discusses new next generation sequencing testing for various tumor types and the rationale for the enhancements that were made; reviews gene additions that are now available in each of the panels; and briefly speaks about the work that was done to validate cytology specimens for use in the subpanels.

In this month's "Hot Topic," Anja Roden, M.D., discusses the role of PD-L1 interaction in the immune system, challenges of PD-L1 testing, and current PD-L1 companion testing in various tumor types.

In this month's "Hot Topic," Rajiv Pruthi, M.B.B.S., discusses heparin induced thrombocytopenia (HIT), approach diagnosis, and the role of the functional serotonin release assay (SRA).