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Any autosomal recessive primary microcephaly in which the cause of the disease is a mutation in the STIL gene.
Features include always present findings: Sloping forehead, Absent speech, Global developmental delay, and Primary microcephaly and others. 10 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 5 | Absent speech, Seizure, Global developmental delay |
STIL function has not been fully characterized.
Microcephaly 7, primary, autosomal recessive is associated with mutations in the STIL gene on chromosome 1.
Genetic testing for STIL is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 8 always present features.
No clinical trials have been registered for microcephaly 7, primary, autosomal recessive.
2 publications have been identified in PubMed for microcephaly 7, primary, autosomal recessive. Research spans Basic Science / Preclinical (50%) and Epidemiology / Natural History (50%).
Fu F (2026). [PMID: 41634881](https://pubmed.ncbi.nlm.nih.gov/41634881/). *Human genomics*. [Epidemiology / Natural History]
Farooq S (2025). [PMID: 41555927](https://pubmed.ncbi.nlm.nih.gov/41555927/). *Frontiers in genetics*. [Basic Science / Preclinical]
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 1:55 PM UTC
Online Mendelian Inheritance in Man
Genetic and Rare Diseases Info Center
2 |
Primary microcephaly, Solitary median maxillary central incisor |