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An X-linked syndromic intellectual disability characterized by moderate intellectual deficit, marked cubitus valgus, mild microcephaly, a short philtrum, deep-set eyes, downslanting palpebral fissures and multiple nevi. Less than ten individuals have been described so far. Transmission is thought to be X-linked recessive.
Features include very common findings: Downslanted palpebral fissures, Moderate intellectual disability, Deeply set eye, and Abnormal facial shape and others; and common findings: Microcephaly, Seizure, Truncal obesity, and Malar flattening. 17 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Head and neck | 3 | Microcephaly, Abnormal facial shape, High palate |
Biomarker and diagnostic research for X-linked intellectual disability-cubitus valgus-dysmorphism syndrome has been reported in the published literature.
Phenotype severity distribution: 8 very common features, 4 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for X-linked intellectual disability-cubitus valgus-dysmorphism syndrome.
201 publications have been identified in PubMed for X-linked intellectual disability-cubitus valgus-dysmorphism syndrome. Kisho has analyzed 158 by research type. Research spans Basic Science / Preclinical (32%), Case Report / Case Series (28%), and Review / Meta-Analysis (20%).
Research Type | Count | % of Total |
|---|---|---|
Laboratory research | 50 |
Data assembled from 5 of 12 sources · Last updated Sep 20, 2026, 11:32 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about X-linked intellectual disability-cubitus valgus-dysmorphism syndrome
Brain and nerves |
2 |
Moderate intellectual disability, Seizure |
Arms and legs | 1 | Tapered finger |
Growth and development | 1 | Short stature |
Patient case studies | 45 | 28% |
Research summaries | 31 | 20% |
Disease patterns and progression | 18 | 11% |
Testing and diagnosis research | 8 | 5% |
Clinical study results | 4 | 3% |
New treatment approaches | 2 | 1% |
Weissgold S (2026). [PMID: 42028919](https://pubmed.ncbi.nlm.nih.gov/42028919/). *J Intellect Disabil Res*. [Review / Meta-Analysis]
Boelaert K (2026). [PMID: 41508830](https://pubmed.ncbi.nlm.nih.gov/41508830/). *The Journal of clinical endocrinology and metabolism*. [Review / Meta-Analysis]
Alexander JL (2026). [PMID: 41346295](https://pubmed.ncbi.nlm.nih.gov/41346295/). *Blood advances*. [Clinical Trial Publication]
Haanpää MK (2026). [PMID: 41236159](https://pubmed.ncbi.nlm.nih.gov/41236159/). *Am J Med Genet A*. [Case Report / Case Series]
Sidorina A (2026). [PMID: 41429203](https://pubmed.ncbi.nlm.nih.gov/41429203/). *J Lipid Res*. [Diagnostic / Biomarker]
Huang R (2026). [PMID: 41205496](https://pubmed.ncbi.nlm.nih.gov/41205496/). *Eur J Obstet Gynecol Reprod Biol*. [Case Report / Case Series]
Dutta D (2026). [PMID: 41741118](https://pubmed.ncbi.nlm.nih.gov/41741118/). *BMJ Case Rep*. [Case Report / Case Series]
Oktay MA (2026). [PMID: 42112678](https://pubmed.ncbi.nlm.nih.gov/42112678/). *J Pediatr Endocrinol Metab*. [Case Report / Case Series]
Nunes IS (2026). [PMID: 41087597](https://pubmed.ncbi.nlm.nih.gov/41087597/). *J Hum Genet*. [Case Report / Case Series]
Hawkins V (2026). [PMID: 41751536](https://pubmed.ncbi.nlm.nih.gov/41751536/). *Genes (Basel)*. [Basic Science / Preclinical]