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Features include always present findings: Delayed speech and language development, Hypoplasia of the corpus callosum, Global developmental delay, and Primary microcephaly and others; and common findings: Tethered cord and Filum terminale lipoma.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 3 | Delayed speech and language development, Global developmental delay, Intellectual disability |
TRAPPC14 function has not been fully characterized.
Microcephaly 25, primary, autosomal recessive is associated with mutations in the TRAPPC14 gene on chromosome 7.
Genetic testing for TRAPPC14 is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 6 always present features, 2 common features.
No clinical trials have been registered for microcephaly 25, primary, autosomal recessive.
4 publications have been identified in PubMed for microcephaly 25, primary, autosomal recessive. Research spans Review / Meta-Analysis (75%) and Case Report / Case Series (25%).
Gündoğdu Öğütlü ÖB (2026). [PMID: 42144532](https://pubmed.ncbi.nlm.nih.gov/42144532/). *Acta Neurol Belg*. [Review / Meta-Analysis]
Zhang T (2025). [PMID: 41306914](https://pubmed.ncbi.nlm.nih.gov/41306914/). *Front Genet*. [Case Report / Case Series]
Chen B (2024). [PMID: 39680195](https://pubmed.ncbi.nlm.nih.gov/39680195/). *J Neurol*. [Review / Meta-Analysis]
Hall R (2024). [PMID: 39769094](https://pubmed.ncbi.nlm.nih.gov/39769094/). *Int J Mol Sci*. [Review / Meta-Analysis]
Data assembled from 5 of 12 sources · Last updated Sep 20, 2026, 11:12 AM UTC
Online Mendelian Inheritance in Man
Genetic and Rare Diseases Info Center
Head and neck |
1 |
Primary microcephaly |
Age of onset: at birth.