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Features include: Decreased body weight, Narrow palate, Hearing loss (hearing impairment), and Delayed eruption of teeth and 15 more.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Skin | 3 | Angiokeratoma, Telangiectasia, Thickened, rough skin (hyperkeratosis) |
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for Ramon syndrome.
7 publications have been identified in PubMed for Ramon syndrome. Research spans Case Report / Case Series (43%), Other (29%), and Review / Meta-Analysis (29%).
Gonzalo-Fonrodona I (2026). [PMID: 41930219](https://pubmed.ncbi.nlm.nih.gov/41930219/). *Front Neuroanat*. [Other]
Vega-Alvear RF (2025). [PMID: 40206738](https://pubmed.ncbi.nlm.nih.gov/40206738/). *Surg Neurol Int*. [Case Report / Case Series]
Gándara Gutiérrez C (2025). [PMID: 40543749](https://pubmed.ncbi.nlm.nih.gov/40543749/). *Ann Endocrinol (Paris)*. [Case Report / Case Series]
Kularbkaew T (2025). [PMID: 40244023](https://pubmed.ncbi.nlm.nih.gov/40244023/). *Int J Mol Sci*. [Other]
Perrone E (2024). [PMID: 38517102](https://pubmed.ncbi.nlm.nih.gov/38517102/). *Am J Med Genet A*. [Review / Meta-Analysis]
Kularbkaew T (2024). [PMID: 39201553](https://pubmed.ncbi.nlm.nih.gov/39201553/). *Int J Mol Sci*. [Case Report / Case Series]
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 8:50 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about Ramon syndrome
3 |
Sideways curvature of the spine (scoliosis), Juvenile rheumatoid arthritis, Excessive outward curvature of the upper spine (kyphosis) |
Brain and nerves | 2 | Seizure, Intellectual disability |
Eyes | 2 | Pigmentary retinopathy, Optic disc pallor |
Head and neck | 1 | Narrow palate |
Ears | 1 | Hearing loss (hearing impairment) |
Growth and development | 1 | Short stature |
Pérez-Riera AR (2024). [PMID: 38714466](https://pubmed.ncbi.nlm.nih.gov/38714466/). *J Electrocardiol*. [Review / Meta-Analysis]