Foramen Thyroideum: A Comparative Study in Embryos,Fetuses, and Adults |
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| Authors: | Xabier Le n,Eva Maranillo,Rosa Maria Mirapeix,Miquel Quer,Jos Ram n Sa udo |
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| Affiliation: | Xabier León,Eva Maranillo,Rosa Maria Mirapeix,Miquel Quer,José Ramón Sañudo |
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| Abstract: | The incidence and characteristics of foramen thyroideum (FT) in embryonic and/or fetal larynges have not been established. In the present study, 90 adult larynges and 53 embryonic-fetal larynges were studied. The incidence of FT during the embryonic-fetal period (57%) was statistically different from the adult period (31%) (P = 0.005). All the FT found in the adult period contained vessels and/or nerves, while in the embryonic and fetal period only 63% presented neurovascular elements (P < 0.001). The origin of FT in the embryonic period and its persistence during adult life is discussed. |
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