Hereditary Hemorrhagic Telangiectasia (HHT)

University HospitalThe HHT Center at the University of Utah was established in 1995 to offer comprehensive care for HHT: hereditary hemorrhagic telangiectasia, a rare, inherited disorder. Diagnosis, screening and treatment are provided in a multi-specialty setting. DNA blood testing is performed in our molecular genetics laboratory (ARUP).

Most patients can have the consultation(s) and tests, recommended in their specific case, done during a one day visit to our center. Patients who need multiple treatments and consultations may have their appointments scheduled over several days. We offer expert, specialized treatment for the many and varied manifestations of HHT.



We also provide help with travel logistics and insurance authorizations, since most patients travel to our clinic from out-of-state. We carefully coordinate visits to assure thorough, efficient care, tailored to the medical needs of each individual. In order to appropriately schedule your visit, we obtain essential medical information about you by phone or email, as well as request previous relevant medical reports and records.

About HHT

HHT, hereditary hemorrhagic telangiectasia (also known as Osler-Weber-Rendu), is a genetic disorder of the blood vessels (a vascular dysplasia) characterized by telangiectases and arteriovenous malformation (AVM). Telangiectasia and AVMs can be described as blood vessels that are missing the normal capillary connection between an artery and vein, such that an artery is abnormally connected directly to a vein.

The word telangiectasia tends to be used if the abnormal blood vessel is small (pinpoint to pinhead size), and AVM is used if the abnormal blood vessel is bigger. These blood vessel abnormalities occur primarily in the nose, mouth, skin of the face and hands,  intestines, lungs, liver, and brain. HHT affects males and females in equal numbers and almost always affects multiple generations of a family. It tends to be very variable, even between members of the same family. 

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The faculty at the University of Utah HHT Center are actively involved in research to help understand the underlying causes of HHT, as well as the optimal management and treatment of the disorder. We discuss available research studies with our patients.

Pinar Bayrak-Toydemir, M.D., Ph.D.

Dr. Bayrak-Toydemir has focused her research efforts on understanding the molecular genetic characteristics of inherited vascular diseases. She primarily studies Hereditary Hemorrhagic Telangiectasia (HHT) disease. In addition to HHT, her research aims to identify genes that cause various inherited vascular malformations. Dr. Bayrak-Toydemir is... Read More


Clinical Scientist


A location has not yet been added by this physician.

Terry D. Box, M.D.

Terry Box, MD, is an Associate Professor in the Department of Internal Medicine at the University of Utah School of Medicine. He is also a Huntsman Cancer Institute (HCI) investigator and a member of HCI's Gastrointestinal Cancer Program. Dr. Box is certified by the American Board of Internal Medicine and the National Board of Medical Examiners. D... Read More


Hepatology, Hereditary Hemorrhagic Telangiectasia, Liver Cancer, Liver Disease, Liver Transplant


University Hospital
Kidney and Liver Clinic
(801) 213-9797
University Hospital
Liver Transplant
(801) 585-6321

Johannes F. Grimmer, M.D.

Dr. Grimmer has an interest in pediatric head and neck surgery including cancer, airway reconstruction, congenital neck masses, thyroid disease, and vascular birthmarks. He is the Director of the Vascular Anomalies Center at Primary Children's Medical Center and coordinates the multidisciplinary care that such patients often require. He serves on... Read More


Otolaryngology, Head & Neck Surgery, Pediatric Otolaryngology, Vascular Malformations


PCH Outpatient Services at Riverton (801) 662-1740
Primary Children's Hospital
Pediatric Otolaryngology/ENT
(801) 662-1740
University Hospital
Otolaryngology/ENT, Clinic 9
(801) 662-1740

Jennifer Juhl Majersik, M.D., M.S.

Dr. Majersik is an Associate Professor of Neurology at the University of Utah, School of Medicine. After receiving her B.S. in Physics from Harvey Mudd College (Claremont, CA), she served in the Air Force as a Scientific Analyst at Wright-Patterson Air Force Base National Air Intelligence Center. In 1997, she attended medical school at University o... Read More

Jamie McDonald, M.S., L.G.C.

Jamie is an Assistant Professor in the Department of Pathology. She received an undergraduate degree from Carleton College in biology, and a master's degree in Genetic Counseling at the University of California at Berkeley in 1986. She is certified as a Genetic Counselor by the American Board of Medical Genetics and American Board of Genetic Coun... Read More


Genetic Counselor, Hereditary Hemorrhagic Telangiectasia


University Hospital
(801) 581-5507

Ryan G. O'Hara, M.D.

Dr. O’Hara completed his medical training at the University of Washington in Seattle followed by training in diagnostic radiology at Sacred Heart Medical Center in Spokane, Washington. He then travelled to Philadelphia to pursue fellowship training in Vascular and Interventional Radiology at the University of Pennsylvania and obtained a certificate... Read More

George M. Rodgers, III, M.D., Ph.D.

George M. Rodgers, M.D., Ph.D. is a Professor of Medicine in the Division of Hematology and Hematologic Malignancies, Department of Internal Medicine at the University of Utah School of Medicine. He also holds an appointment as an adjunct Professor in the Department of Pathology. He is not only the adult hemophilia and thrombosis expert in the st... Read More


Benign Hematology, Coagulation, Hematology/BMT, Hereditary Hemorrhagic Telangiectasia


Huntsman Cancer Hospital
Hematology Clinic
(801) 585-2626

N. Jewel Samadder, M.Sc., M.D.

Dr. Samadder received his medical degree from the University of Toronto (Canada) where he also completed his internal medicine residency. He subsequently completed a fellowship in Gastroenterology at the University of Michigan (Ann Arbor, MI) and an Advanced Endoscopy fellowship at the Mayo Clinic (Rochester, MN). During his gastroenterology fellow... Read More


Clinical Genetics, Gastroenterology, Colon Cancer, Gastrointestinal Cancers, Pancreatic Cancer


Huntsman Cancer Institute
(801) 213-9797
South Jordan Health Center (801) 213-9797

Richard H. Schmidt, M.D., Ph.D.

Dr. Schmidt specializes in the neurosurgical treatment of cranial disorders including brain tumors, meningiomas, aneurysms and vascular malformations, Chiari malformation, hydrocephalus, head trauma and critical care problems. Dr. Schmidt has been a cerebral vascular neurosurgeon at the University of Utah since 1993, providing comprehensive care o... Read More

Edwin A. Stevens, M.D.

Edwin A. "Steve" Stevens, MD is Professor and Chair of the Department of Radiology at the University of Utah. Dr. Stevens is an interventional neuroradiologist who treats neurological diseases by endovascular and minimally invasive techniques guided by imaging. Dr. Stevens has given over 50 presentations, published over 30 articles and book chapter... Read More

P. Daniel Ward, FACS, M.D., M.S.

P. Daniel Ward, M.D., is a board-certifed facial plastic surgeon who specializes in cosmetic and reconstructive surgery of the face. Dr. Ward obtained his medical degree from the University of Utah School of Medicine and then completed a residency training program in Otolaryngology--Head & Neck Surgery at the University of Michigan. He staye... Read More

Kevin J. Whitehead, M.D.

Kevin Whitehead, MD is an Associate Professor of Cardiology at the University of Utah, and also has privileges at Primary Children's Medical Center. He cares for adults with congenital heart disease, heart disease in pregnancy, and other patients with cardiac complications of genetic diseases (such as muscular dystrophies). Dr. Whitehead is the Co... Read More


Adult Congenital Heart Disease, Cardiology, Echocardiography, Hereditary Hemorrhagic Telangiectasia


University Hospital
Utah Adult Congential Heart Clinic
(801) 585-7676
University Hospital
HHT Center
(801) 581-8188
University Hospital
Cardiovascular Center
(801) 585-7676

Kevin F. Wilson, M.D.

Kevin F. Wilson, M.D., is a board-certified physician specializing in otolaryngology and head and neck surgery. Dr. Wilson received his medical degree from Washington University’s School of Medicine. He is a member of the American Academy of Otolaryngology and a Fellow of the American Academy of Otolaryngic Allergy, having received advanced trainin... Read More

HHT Center 30 North 1900 East, #1A71
Salt Lake City, UT 84132
(801) 581-8818