Delivering faster answers to more patients
One integrated diagnostics ecosystem
Mayo Clinic Laboratories provides serious or complex laboratory testing to advance patient care worldwide. For over 50 years, we’ve helped physicians answer the toughest clinical questions with confidence and empowered hospitals to elevate care in their communities. Through one integrated diagnostics ecosystem powered by Mayo Clinic, we deliver trusted, timely answers to patients around the globe.
“We focus on delivering accurate and timely results but also serving as a compass for providers and their patients to be connected to the right therapies no matter where they are in the world.”
William Morice II, M.D., Ph.D., president and CEO, Mayo Clinic Laboratories
Patient-centered innovation

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Viral and pharmacogenomic testing help clinicians detect infection early, tailor immunosuppression, and improve long-term outcomes for organ transplant recipients.
After months of misdiagnoses, Tom Heisler found answers at Mayo Clinic, where advanced renal pathology revealed IgG4-related disease and led to his recovery.
Artificial intelligence (AI) is reshaping laboratory medicine, not as a distant promise, but as a practical tool improving diagnostics, workflows, and quality. Through collaborative development, rigorous validation, and a commitment to ethical innovation, Mayo Clinic Laboratories is implementing AI-driven solutions that enhance precision, reduce turnaround times, and empower laboratorians to focus on what matters most: patient care.
A random urine test panel aids in diagnosing mast cell activation syndrome (MCAS), a complex condition often misdiagnosed due to overlapping symptoms. The panel improves access, speeds up diagnosis, and enables individualized treatment by detecting key mast cell mediators.
After mysterious neurological symptoms began in 2010, Brad Karon, M.D., Ph.D., was diagnosed with paraneoplastic syndrome, a rare condition that led to groundbreaking research and test development at Mayo Clinic. Years later, pulmonary fibrosis and a double lung transplant would test him once again — and redefine his resilience.
Mayo Clinic Laboratories’ newly expanded Hereditary Pancreatitis Gene Panel is transforming how clinicians diagnose and manage a complex, often elusive disease. Developed through close collaboration between lab scientists, genetic counselors, and clinicians, the test uses a whole exome sequencing backbone to analyze nine carefully selected genes with strong clinical relevance. This focused approach avoids ambiguous results while empowering early diagnosis, cancer risk assessment, and family testing. Built on a whole exome backbone with reflex capabilities, the panel represents a major step forward in precision medicine — offering clarity for patients and providers, and a platform for future genomic innovation.
For many, the path to a correct diagnosis can be long and filled with uncertainty. This story highlights the resilience and determination of one patient who navigated a complex medical journey to find answers and hope at Mayo Clinic. The patient asked to remain anonymous for personal privacy reasons.
By using a test that measures neurofilament light chain (Nfl) proteins in blood, clinicians can better diagnose devastating diseases like ALS and MS, help predict disease progression, and better assess efficacy of existing drugs and trial therapies.
After years of misdiagnosis, Tyler Hart found answers at Mayo Clinic, discovering he had NF155-IgG4 autoimmune nodopathy instead of CIDP
An order-entry, clinical decision support tool developed by physicians and scientists at Froedtert and the Medical College of Wisconsin (MCW) for clinicians within the healthcare system who order autoimmune and paraneoplastic antibody panels has significantly improved test utilization, resulting in a 28% reduction in monthly test volumes of impacted tests.
Performed on cerebrospinal fluid, Mayo Clinic’s RT-QuIC prion test can distinguish prion disease from other types of rapidly progressive dementias to enhance patient care.
Justin Fugelsang and Zach Pedowitz have never met. Yet both young men were diagnosed with a rare form of Charcot-Marie-Tooth disease, called sorbitol dehydrogenase (SORD) deficiency, and both found clarity through Mayo Clinic Laboratories' innovative SORD testing. Their journeys inspire resilience, as Justin has channeled his emotions into guitar playing, and Zach has embraced educational leadership.
New diagnostic tests specifically for conditions that predominantly or only affect women, such as autoimmune diseases and gynecological cancers, are empowering female patients and their physicians to make informed decisions.