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Bannayan-Riley-Ruvalcaba syndrome (BRRS) is a rare congenital disorder characterized by hamartomatous intestinal polyposis, lipomas, macrocephaly and genital lentiginosis.
Features include very common findings: Macrocephaly, Abnormal large intestine morphology, Nevus, and Short stature and others; and common findings: Pectus excavatum, Subcutaneous nodule, Subcutaneous hemorrhage, and Sideways curvature of the spine (scoliosis). 55 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Muscles | 6 | Low muscle tone (hypotonia), Muscle weakness, Delayed gross motor development |
Biomarker and diagnostic research for Bannayan-Riley-Ruvalcaba syndrome has been reported in the published literature.
Phenotype severity distribution: 12 very common features, 4 common features.
Estimated prevalence: Unknown (Unknown prevalence).
No clinical trials have been registered for Bannayan-Riley-Ruvalcaba syndrome.
106 publications have been identified in PubMed for Bannayan-Riley-Ruvalcaba syndrome. Research spans Case Report / Case Series (39%), Review / Meta-Analysis (30%), and Epidemiology / Natural History (11%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 39 | 39% |
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 4:31 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about Bannayan-Riley-Ruvalcaba syndrome
Skin | 5 | Irregular hyperpigmentation, Subcutaneous nodule, Subcutaneous hemorrhage |
Bones and joints | 4 | Sideways curvature of the spine (scoliosis), Delayed skeletal maturation, Skeletal muscle atrophy |
Brain and nerves | 4 | Intellectual disability, Seizure, Abnormal speech pattern |
Digestive system | 3 | Abnormal large intestine morphology, Intestinal polyposis, Abdominal wall muscle weakness |
Growth and development | 3 | Short stature, Tall stature, Cachexia |
Hormones | 3 | Hashimoto thyroiditis, Thyroid carcinoma, Neoplasm of the adrenal cortex |
Heart and blood vessels | 3 | Angina pectoris, Intracranial hemorrhage, Aortic aneurysm |
Head and neck | 2 | Macrocephaly, Narrow palate |
Eyes | 1 | Abnormal optic nerve morphology |
Neoplasm | 1 | Neoplasm |
Blood and immune system | 1 | Lymphoma |
Research summaries
30 |
30% |
Disease patterns and progression | 11 | 11% |
Testing and diagnosis research | 6 | 6% |
Laboratory research | 6 | 6% |
Clinical study results | 5 | 5% |
New treatment approaches | 2 | 2% |
Other research | 1 | 1% |
Mukhopadhyay A (2026). [PMID: 42112690](https://pubmed.ncbi.nlm.nih.gov/42112690/). *Orbit*. [Case Report / Case Series]
Liu Y (2026). [PMID: 41428178](https://pubmed.ncbi.nlm.nih.gov/41428178/). *Adv Ther*. [Clinical Trial Publication]
Sihaklang B (2026). [PMID: 42106060](https://pubmed.ncbi.nlm.nih.gov/42106060/). *Eur J Med Genet*. [Case Report / Case Series]
Matoso A (2026). [PMID: 41368924](https://pubmed.ncbi.nlm.nih.gov/41368924/). *Am J Surg Pathol*. [Case Report / Case Series]
Maheshwari E (2026). [PMID: 41379651](https://pubmed.ncbi.nlm.nih.gov/41379651/). *Radiographics*. [Review / Meta-Analysis]
Hunsicker JW (2026). [PMID: 41338130](https://pubmed.ncbi.nlm.nih.gov/41338130/). *Int J Pediatr Otorhinolaryngol*. [Case Report / Case Series]
Johnson CR (2026). [PMID: 41522263](https://pubmed.ncbi.nlm.nih.gov/41522263/). *Case Rep Radiol*. [Diagnostic / Biomarker]
Shukla A (2026). [PMID: 41991228](https://pubmed.ncbi.nlm.nih.gov/41991228/). *BMJ Case Rep*. [Case Report / Case Series]
Wong SY (2026). [PMID: 41240053](https://pubmed.ncbi.nlm.nih.gov/41240053/). *J Invest Dermatol*. [Review / Meta-Analysis]
Mertiri L (2026). [PMID: 41703635](https://pubmed.ncbi.nlm.nih.gov/41703635/). *Cancer Imaging*. [Review / Meta-Analysis]
AI-curated news mentioning Bannayan-Riley-Ruvalcaba syndrome
Updated Jul 8, 2026
A new treatment for children aged 2 or older with sickle cell disease has been approved by the U.S. Food & Drug Administration. In a press release on Wednesday, the FDA announced it had approved Casgevy, the first gene therapy for children with sickle cell disease. (NewsNation) — A new treatment for children aged 2 or older with sickle cell disease has been approved by the Food & Drug Administration (FDA). In a Wednesday news release, the FDA announced it had approved Casgevy, the first gene therapy for children with the disease. “Casgevy is a gene therapy consisting of the patient’s own (autologous) hematopoietic (blood) stem cells, administered as a one-time single dose for intravenous infusion,” the release noted. “Pediatric patients as young as 2 years of age can now access a critical additional treatment option to treat these debilitating, life-threatening diseases,” Karim Mikhail, the acting director of the Center for Biologics Evaluation and Research, wrote. “These disorders carry a heavy burden for children and their families, affecting growth, development, and long-term health in profound ways,” Megha Kaushal, acting deputy director of the Office of Therapeutic Products in CBER, said in the release.