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An extremely rare malformation syndrome, described in less than 10 patients to date, characterized by microcephaly with characteristic facies (downslanting parpebral fissures, microstomia, beaked nose, narrow maxilla), very short stature, narrow thoracic cage with pectus carinatum, hypoplastic genitalia and skeletal anomalies (i.e. characteristic brachydactyly and osteochondritis of the spine) as well as intellectual and developmental delay.
Features include: Microcephaly, Downslanted palpebral fissures, Micromelia, and Limited elbow extension and 19 more.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Arms and legs | 3 | Short foot, Small hand, Short phalanx of finger |
Bones and joints |
Estimated prevalence: Unknown (Unknown prevalence).
1 clinical trial registered. Interventions under study include drug therapy. Pipeline includes 1 PHASE2. Research is primarily sponsored by academic and government institutions.
14 publications have been identified in PubMed for Ruvalcaba syndrome. Research spans Case Report / Case Series (64%), Review / Meta-Analysis (29%), and Other (7%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 9 | 64% |
Data assembled from 6 of 12 sources · Last updated Sep 18, 2026, 10:48 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about Ruvalcaba syndrome
2 |
Sideways curvature of the spine (scoliosis), Excessive outward curvature of the upper spine (kyphosis) |
Head and neck | 1 | Microcephaly |
Growth and development | 1 | Short stature |
Breast | 1 | Abnormality of the breast |
Hormones | 1 | Delayed puberty |
Brain and nerves | 1 | Intellectual disability |
Eyes | 1 | Retinal dystrophy |
Research summaries |
4 |
29% |
Other research | 1 | 7% |
Mukhopadhyay A (2026). [PMID: 42112690](https://pubmed.ncbi.nlm.nih.gov/42112690/). *Orbit*. [Case Report / Case Series]
Campos-Muñoz L (2026). [PMID: 40589203](https://pubmed.ncbi.nlm.nih.gov/40589203/). *Pediatr Dermatol*. [Case Report / Case Series]
Sihaklang B (2026). [PMID: 42106060](https://pubmed.ncbi.nlm.nih.gov/42106060/). *Eur J Med Genet*. [Case Report / Case Series]
Shukla A (2026). [PMID: 41991228](https://pubmed.ncbi.nlm.nih.gov/41991228/). *BMJ Case Rep*. [Case Report / Case Series]
Boyd BM (2025). [PMID: 39189835](https://pubmed.ncbi.nlm.nih.gov/39189835/). *Am J Med Genet A*. [Case Report / Case Series]
Alolyan AM (2025). [PMID: 41339609](https://pubmed.ncbi.nlm.nih.gov/41339609/). *Discov Oncol*. [Review / Meta-Analysis]
Gąsiorowska J (2025). [PMID: 41693191](https://pubmed.ncbi.nlm.nih.gov/41693191/). *Pediatr Endocrinol Diabetes Metab*. [Review / Meta-Analysis]
Maeda Y (2025). [PMID: 39974553](https://pubmed.ncbi.nlm.nih.gov/39974553/). *Surg Case Rep*. [Case Report / Case Series]
Soni D (2025). [PMID: 40058215](https://pubmed.ncbi.nlm.nih.gov/40058215/). *Int J Surg Case Rep*. [Case Report / Case Series]
Michels BD (2025). [PMID: 39115470](https://pubmed.ncbi.nlm.nih.gov/39115470/). *Ophthalmology*. [Case Report / Case Series]