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Chromosome 7q duplication is a chromosome abnormality that occurs when there is an extra copy of genetic material on the long arm (q) of chromosome 7. The severity of the condition and the signs and symptoms depend on the size and location of the duplication and which genes are involved. Features that often occur in people with chromosome 7q duplication include developmental delay, intellectual disability, behavioral problems and distinctive facial features. Most cases are not inherited, but people can pass the duplication on to their children. Treatment is based on the signs and symptoms present in each person.
No clinical trials have been registered for partial duplication of the long arm of chromosome 7.
10 publications have been identified in PubMed for partial duplication of the long arm of chromosome 7. Research spans Case Report / Case Series (60%), Basic Science / Preclinical (30%), and Epidemiology / Natural History (10%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 6 | 60% |
Data assembled from 3 of 12 sources · Last updated Sep 20, 2026, 5:42 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Laboratory research |
3 |
30% |
Disease patterns and progression | 1 | 10% |
da Silva BF (2025). [PMID: 41462934](https://pubmed.ncbi.nlm.nih.gov/41462934/). *Biomedicines*. [Case Report / Case Series]
Aneja K (2025). [PMID: 39624702](https://pubmed.ncbi.nlm.nih.gov/39624702/). *Radiology case reports*. [Case Report / Case Series]
Abang Abdullah ZH (2025). [PMID: 41503326](https://pubmed.ncbi.nlm.nih.gov/41503326/). *Cureus*. [Case Report / Case Series]
Rinaldi I (2025). [PMID: 41225551](https://pubmed.ncbi.nlm.nih.gov/41225551/). *Molecular cytogenetics*. [Epidemiology / Natural History]
Nachtkamp K (2025). [PMID: 40488753](https://pubmed.ncbi.nlm.nih.gov/40488753/). *Annals of hematology*. [Basic Science / Preclinical]
Kanaoka R (2025). [PMID: 40856401](https://pubmed.ncbi.nlm.nih.gov/40856401/). *Pediatrics international : official journal of the Japan Pediatric Society*. [Case Report / Case Series]
Tanabe H (2024). [PMID: 39632802](https://pubmed.ncbi.nlm.nih.gov/39632802/). *Human genome variation*. [Case Report / Case Series]
Zhu J (2024). [PMID: 38847723](https://pubmed.ncbi.nlm.nih.gov/38847723/). *Medicine*. [Case Report / Case Series]
Wei Q (2024). [PMID: 39766092](https://pubmed.ncbi.nlm.nih.gov/39766092/). *Cancers*. [Basic Science / Preclinical]
Srivastava VM (2024). [PMID: 39334460](https://pubmed.ncbi.nlm.nih.gov/39334460/). *Molecular cytogenetics*. [Basic Science / Preclinical]