Short answer · Medically reviewed summary · Last updated: 2026-05-08

Sly syndrome, formally known as Mucopolysaccharidosis type VII (MPS VII), is a rare lysosomal storage disorder caused by a deficiency of the enzyme beta-glucuronidase. It is most commonly referred to in medical literature as MPS VII, while the name Sly syndrome honors Dr.

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Sly Syndrome synonyms

Other names for Sly Syndrome: synonyms, acronyms and related terms used by doctors and patients.

Sly Syndrome is also known as...

Sly syndrome, formally known as Mucopolysaccharidosis type VII (MPS VII), is a rare lysosomal storage disorder caused by a deficiency of the enzyme beta-glucuronidase. It is most commonly referred to in medical literature as MPS VII, while the name Sly syndrome honors Dr. William Sly, who first described the condition in 1973.



What are the official and common names for Sly syndrome?


In clinical practice, the most accurate and preferred term is Mucopolysaccharidosis type VII (MPS VII). While Sly syndrome is widely recognized in medical textbooks and patient communities, the classification system relies on the specific enzyme deficiency involved. Because the condition is a spectrum disorder, you may encounter various labels across different medical records and international databases.



Why does Sly syndrome have multiple names?


Medical terminology often evolves as our understanding of a disease's genetic and biochemical basis improves. Sly syndrome was named after the physician who identified the clinical presentation in 1973. However, international classification systems prefer descriptive names based on the underlying pathology to ensure global consistency. The following list outlines the primary identifiers for the condition:



  • Mucopolysaccharidosis type VII (Official medical classification)

  • MPS VII (Standard clinical abbreviation)

  • Beta-glucuronidase deficiency (Biochemical descriptor)

  • Sly syndrome (Eponymous name)



How is the disease classified in medical databases?


Major international health systems categorize Sly syndrome under specific unique identifiers to assist in research and patient care. Under the Online Mendelian Inheritance in Man (OMIM) database, it is cataloged as #253220. In the Orphanet database, it is identified by the ORPHA code 582, which provides a centralized resource for rare disease information. These codes are essential for patients when communicating with specialists or insurance providers to ensure they are referencing the correct clinical entity.



Next steps



  • Consult with a metabolic geneticist to confirm your specific diagnosis and clinical documentation.

  • Visit the National MPS Society or GARD to access up-to-date information on Sly syndrome management.

  • Connect with the DiseaseMaps.org community to share experiences with others navigating the complexities of MPS VII.

  • Ensure your primary care physician uses the official ICD-10 code (E76.29) for Sly syndrome to streamline care coordination.



Medical disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of a qualified physician with any questions regarding a medical condition.



References



  • NIH Genetic and Rare Diseases Information Center (GARD) - Mucopolysaccharidosis type VII

  • Orphanet: ORPHA582 (Mucopolysaccharidosis type VII)

  • Online Mendelian Inheritance in Man (OMIM): #253220 (MPS VII)

  • National MPS Society: Information on Beta-glucuronidase deficiency

Author: DiseaseMaps Editorial Team
Reviewed against authoritative medical sources (NIH GARD, Orphanet, OMIM)
Last updated: 2026-05-08
Medical disclaimer: This information does not substitute professional medical advice. Always consult your doctor before making health decisions.
Source: DiseaseMaps.org
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