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The 8q22.1 microdeletion syndrome or Nablus mask-like facial syndrome is a rare microdeletion syndrome associated with a distinct facial appearance.
Features include always present findings: Absent eyelashes, Narrow mouth, Short nose, and Smooth philtrum and others; and very common findings: Sparse eyebrow, Highly arched eyebrow, Mask-like facies, and Low-set ears and others. 66 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Head and neck | 8 | Hypoplasia of the maxilla, Thin upper lip vermilion, High palate |
Biomarker and diagnostic research for 8q22.1 microdeletion syndrome has been reported in the published literature.
Phenotype severity distribution: 20 always present features, 17 very common features, 10 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for 8q22.1 microdeletion syndrome.
5 publications have been identified in PubMed for 8q22.1 microdeletion syndrome. Research spans Case Report / Case Series (40%), Diagnostic / Biomarker (20%), and Review / Meta-Analysis (20%).
Miremberg H (2026). [PMID: 41353713](https://pubmed.ncbi.nlm.nih.gov/41353713/). *Prenat Diagn*. [Epidemiology / Natural History]
Lanzarone V (2025). [PMID: 39831641](https://pubmed.ncbi.nlm.nih.gov/39831641/). *J Ultrasound Med*. [Review / Meta-Analysis]
Bartek V (2024). [PMID: 39062246](https://pubmed.ncbi.nlm.nih.gov/39062246/). *Children (Basel)*. [Diagnostic / Biomarker]
Abughofah Y (2024). [PMID: 38729602](https://pubmed.ncbi.nlm.nih.gov/38729602/). *Eur J Med Genet*. [Case Report / Case Series]
Mitrakos A (2024). [PMID: 39037278](https://pubmed.ncbi.nlm.nih.gov/39037278/). *Am J Med Genet A*. [Case Report / Case Series]
Data assembled from 5 of 12 sources · Last updated Sep 18, 2026, 1:07 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about 8q22.1 microdeletion syndrome
Arms and legs |
4 |
Tapered finger, Joint contracture of the hand, Camptodactyly of finger |
Brain and nerves | 3 | Global developmental delay, Depressed nasal bridge, Depressed nasal ridge |
Bones and joints | 2 | Joint contracture of the hand, Limitation of joint mobility |
Muscles | 2 | Joint contracture of the hand, Limitation of joint mobility |
Skin | 2 | Skin dimple, Lack of skin elasticity |
Hormones | 1 | Hypogonadism |
AI-curated news mentioning 8q22.1 microdeletion syndrome
Updated Aug 25, 2026
The FDA approved Genglycos (pariglasgene brecaparvovec-opnr) to reduce daily cornstarch intake in patients aged 8 years and older with glycogen storage disease type Ia. Known as Von Gierke disease, GSDIa is a rare metabolic disorder caused by a mutation in the G6PC gene. This genetic variation leads to a deficiency in glucose-6-phosphatase (G6Pase), an enzyme needed to release glucose into the bloodstream. Without this enzyme, the body cannot properly maintain blood glucose levels, causing severe hypoglycemia and other serious metabolic complications · Pariglasgene brecaparvovec is an adeno-associated virus (AAV) serotype 8 based gene therapy that delivers a functional copy of the G6PC gene into liver cells, enabling the production of normally functioning G6Pase. Ultragenyx stated that as part of its postmarketing commitments to the FDA, the Company will provide 2 years of clinical data from open-label commercial treatment of 50 patients and 20 control patients through its existing GSDIa Disease Monitoring Program. ... Ultragenyx announces US FDA approval of Genglycos™ gene therapy, the first-ever FDA-approved treatment designed to treat the underlying cause of glycogen storage disease type Ia (GSDIa). “The reduced reliance on cornstarch, experienced by patients in our clinical studies, demonstrates this gene therapy’s ability to establish the normal breakdown of glycogen to produce glucose during fasting or episodes of metabolic stress. This ability to regulate glucose has alleviated the disease burden and has the potential to mitigate the risk of severe or life-threatening hypoglycemia for these patients.” Close more info about First Gene Therapy Approved for Glycogen Storage Disease Type la