Mucopolysaccharidosis VII Disease Monitoring Program

Who May Qualify: - Diagnosis of MPS VII based on laboratory diagnosis, including either enzymatic or mutation analysis. - Willing and able to provide written willing to sign a consent form or, in the case of patients under the age of 18 (or below adult ages as defined by local laws and regulations) or patients \>18 years of age who have cognitive deficiencies, provide written assent (if required) and written willing to sign a consent form by a legally authorized representative after the nature of the DMP has been explained, and prior to any research-related procedures. - Willing to comply with DMP visit schedule. Who Should NOT Join This Trial: - Concurrent participation in other pharmaceutical company-sponsored interventional clinical trial unless approved by Ultragenyx. Always talk to your doctor about whether this trial is right for you.