The Human Phenotype Ontology (HPO) provides the following list of features that have been reported in people with this condition. Much of the information in the HPO comes from Orphanet, a European rare disease database. If available, the list includes a rough estimate of how common a feature is (its frequency). Frequencies are based on a specific study and may not be representative of all studies. You can use the MedlinePlus Medical Dictionary for definitions of the terms below.
|Signs and Symptoms||Approximate number of patients (when available)|
|Abnormality of the teeth||90%|
|Coarse facial features||90%|
|Depressed nasal bridge||90%|
|Depressed nasal ridge||90%|
|Thin vermilion border||90%|
|Abnormality of immune system physiology||50%|
|Abnormality of retinal pigmentation||50%|
|Abnormality of the cardiovascular system||50%|
|Abnormality of the hip bone||50%|
|Abnormality of the tongue||7.5%|
|Limitation of joint mobility||7.5%|
|Abnormality of the heart valves||-|
|Cervical cord compression||-|
|Congestive heart failure||-|
|Delayed eruption of teeth||-|
|Heparan sulfate excretion in urine||-|
|Intellectual disability, profound||-|
|Mild short stature||-|
|Obstructive sleep apnea||-|
|Recurrent otitis media||-|
|Severe short stature||-|
|Thick lower lip vermilion||-|
|Widely spaced teeth||-|
|X-linked recessive inheritance||-|
The Genetic Testing Registry (GTR) provides information about the genetic tests for this condition. Click here to link directly to a list of labs conducting carrier screening for MPS II. The intended audience for the GTR is health care providers and researchers. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.
The resources below provide information about treatment options for this condition. If you have questions about which treatment is right for you, talk to your healthcare professional.
Learn more orphan products.
Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.
Nonprofit support and advocacy groups bring together patients, families, medical professionals, and researchers. These groups often raise awareness, provide support, and develop patient-centered information. Many are the driving force behind research for better treatments and possible cures. They can direct people to research, resources, and services. Many groups also have experts who serve as medical advisors. Visit their website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD. Suggest an organization to add.
Living with a genetic or rare disease can impact the daily lives of patients and families. These resources can help families navigate various aspects of living with a rare disease.
These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.
2016 Million Dollar Bike Ride Pilot Grant Program
August 15, 2016
Gordon Research Conference and Gordon Research Seminar on Lysosomes and Endocytosis
Sunday, June 15, 2014 -
Friday, June 20, 2014
Location: Proctor Academy, Andover, NH
Description: The main goal of the Lysosomes and Endocytosis GRC is to foster the dissemination of current research results and the establishment of new research areas and new collaborations in the area of the cell biology of endocytosis, lysosomes, endosomes and related organelles. We hope that many of these new directions and collaborations will be directed toward the etiology, diagnosis and treatment of rare genetic diseases such as lysosomal storage disorders, Hermansky-Pudlak syndrome, Chediak-Higashi syndrome, Niemann Pick disease and tuberous sclerosis, among others.
Contact: Alexandra Ainsztein, Ph.D.(301) 594-0828, Alexandra.Ainsztein@nih.gov
Co-funding Institute(s): National Institute of General Medical Sciences, Office of Rare Diseases Research
WORLD Symposium 2010 (Lysosomal Disease Network's 6th Annual Research Meeting)
Wednesday, February 10, 2010 -
Friday, February 12, 2010
Location: Miami Hilton Downtown, Miami, Florida
Description: The specific aims of this meeting were to (1) emphasize the strategies for, and identify the obstacles to, moving from translational research to clinical trials; (2) coalesce members of the LD network into functional research collaborations and present to the LDN community progress on the specific projects that are part of the funded U54 RDCRN grant; (3) foster interdisciplinary collaboration with the overall goal of improving knowledge of basic discoveries and clinical manifestations of these diseases; (4) provide an educational forum for young investigators, clinicians, and researchers in the field; (5) identify and discuss the latest findings in the natural history of lysosomal diseases, diagnostic testing and screening, and treatment, with specific focus on (a) inflammatory components of lysosomal diseases and autophagy, especially in the central nervous system, (b) new treatments of the central nervous systems, and (c) ethics and efficacy in treating the presymptomatic or asymptomatic patient; and (6) identify areas requiring additional basic and clinical research and public policy and regulatory attention, such as ethics and economics, and factors that impact implementation of therapy, including newborn screening.
Contact: Dr. Danilo A. Tagle(301) email@example.com
Co-funding Institute(s): National Institute of Neurological Disorders and Stroke, Office of Rare Diseases Research
Questions sent to GARD may be posted here if the information could be helpful to others. We remove all identifying information when posting a question to protect your privacy. If you do not want your question posted, please let us know. Submit a new question
I had two brothers with the severe form of Hunter syndrome and both have passed away. I was never tested to see if I am a carrier, and now my daughter would like to know if she is a carrier. Is there a definitive test to determine if one is a carrier? Who do we contact to be tested? See answer