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Foramen thyroideum: a comparative study in embryos, fetuses, and adults
X León1, E Maranillo, R M Mirapeix
1Department of Otorhinolaryngology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
The Laryngoscope
|August 1, 1997
Summary
The foramen thyroideum (FT) is more common in embryonic/fetal larynges (57%) than adults (31%). Neurovascular elements are also less frequent in embryonic/fetal FT, suggesting developmental differences.
Area of Science:
- Anatomy
- Embryology
- Laryngeal Development
Background:
- The incidence and characteristics of the foramen thyroideum (FT) in embryonic and fetal larynges are not well-established.
- Understanding FT development is crucial for laryngeal anatomy and potential clinical implications.
Purpose of the Study:
- To determine the incidence and characteristics of the foramen thyroideum (FT) in both embryonic-fetal and adult larynges.
- To compare the presence of neurovascular elements within the FT across developmental stages.
Main Methods:
- A comparative anatomical study involving 90 adult larynges and 53 embryonic-fetal larynges.
- Statistical analysis was performed to compare the incidence and characteristics of FT between the two groups.
Main Results:
- The incidence of FT was significantly higher in the embryonic-fetal period (57%) compared to the adult period (31%) (P = 0.005).
- Neurovascular elements were present in all adult FT (100%), but only in 63% of embryonic-fetal FT (P < 0.001).
Conclusions:
- The foramen thyroideum (FT) exhibits a higher incidence during embryonic and fetal development than in adulthood.
- The presence of neurovascular elements within the FT differs significantly between embryonic-fetal and adult stages, indicating developmental changes.