Thoracic duct anatomical variability on fetuses in Córdoba city, Argentina
The thoracic duct (TD) is the largest infradiaphragmatic collector of lymphatic vessels in the body. It forms from mesodermal endothelial cells during the sixth week of gestation. In the different stages of its development, differentiated atrophies of the ducts can be observed. In the adult...
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| Autores principales: | , , , , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Universidad Nacional Córdoba. Facultad de Ciencias Médicas. Secretaria de Ciencia y Tecnología
2023
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/med/article/view/42780 |
| Aporte de: |
| Sumario: | The thoracic duct (TD) is the largest infradiaphragmatic collector of lymphatic vessels in the body. It forms from mesodermal endothelial cells during the sixth week of gestation. In the different stages of its development, differentiated atrophies of the ducts can be observed. In the adult individual, there is a wide variability in the anatomical arrangement of the origin, path and drainage into the venous system of the duct in question. Given that in the international bibliography the studies published on the subject are limited, especially regarding fetal specimens, this research is proposed for the purpose of determining the anatomical varieties of the thoracic duct in fetuses.
Twenty-four fetuses were dissected, 14 male and 10 female, from 13 to 24 weeks of gestation, from the Misericordia and Provincial Maternity Hospital of the city of Córdoba. The mediastinum and retroperitoneum regions were dissected in order to find and expose the TD. The results obtained are tabulated in a table.
The TD was found in 21 of the 24 fetuses (87.5%), with 15 cases (63%) of TD with a path similar to the one described in the bibliography (variety a), among which, 9 had the cisterna chyli with a saccular appearance, except for one case in which it was possible to describe it as a "pearl necklace", i.e. a succession of dilations. The TD venous drainages were right in 12.5% and left in 87.5% of the fetuses. In the rest of the specimens, varieties were found and classified as: (b) TD of right drainage (12.5%), (c) absence of TD (12.5%), (d) TD of left origin and drainage (4.17%), (e) TD of anterior path to the esophagus (4.17%) and (f) TD of an anterior path to the aorta in a curved shape (4.17%).
Due to the clinical and surgical implications of injuries in the TD, knowledge of its diverse anatomical varieties is important in order to avoid diagnostic or therapeutic errors. |
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