ArticleChild's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery2026
Duplicated hypoglossal canal prevalence in a fetal and infantile population: neurosurgical considerations.
Article in Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Developmental changes in hypoglossal canal morphometry and its anatomical relationships: a CT study in 180 pediatric patients.Surgical and radiologic anatomy : SRA · 2026Article
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Abstract
purposeThe hypoglossal canal can develop bony ingrowths that create the appearance of hypoglossal canal duplication, encroach upon neurovasculature, and complicate condylectomy and transcondylar neurosurgical approaches. Numerous reports have identified the prevalence of the duplicated hypoglossal canal in adults; yet, data in the pediatric population remains limited. Therefore, this study assesses hypoglossal canal duplication among a fetal and infantile population.
methodsThe study assessed hypoglossal canals in dry exoccipital bones from a modern population of 112 fetal and infantile crania of varied sex and population affinity, documented only as "black" and "white" in archival records, ranging in age from 5-month intrauterine development to 12-month postnatal development.
resultsComplete duplicated hypoglossal canals were found in 8:107 (7.48%) crania, 4:63 (6.35%) of fetal crania and 4:44 of infantile crania (9.09%); 8:205 (3.9%) exoccipital bones, 4:124 (3.23%) of fetal exoccipital bones, and 4:81 (4.94%) of infantile exoccipital bones. Regarding sex, complete duplicated hypoglossal canals were found in 4:91 (4.4%) female exoccipital bones and 4:114 (3.5%) male exoccipital bones. In "black" individuals, complete duplication was found in 3:115 (2.6%) exoccipital bones; and in "white" individuals, complete duplication was found in 5:90 (5.55%) exoccipital bones. Duplication was more common on the left, 5:107 (4.67%), as compared to the right, 3:107 (2.8%). No bilateral duplications were found. Incomplete duplications were found in 4:107 crania (3.74%) and only on the right side.
conclusionsHypoglossal canal duplication can be present in the youngest of patients regardless of age, sex, and ancestry. Duplications may cause radiological and surgical confusion; thus, this report may help prevent adverse neurosurgical events.
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