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Surgical and Radiologic Anatomy

Erschienen in:

05.02.2024 | Original Article

Lowered hyoid bone overlapping the thyroid cartilage in CT angiograms

verfasst von: Mugurel Constantin Rusu, Răzvan Costin Tudose, Alexandra Diana Vrapciu, Şerban Arghir Popescu

Erschienen in: Surgical and Radiologic Anatomy | Ausgabe 3/2024

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Abstract

Background

The ventral enclosure of the thyroid cartilage by a collapsed hyoid bone (CHB) is poorly encountered in previous research. It was aimed to observe whether or not these malformations could be found and detailed anatomically in a consistent lot of computed tomography (CT) files.

Methods

Two hundred archived CT angiograms were explicitly observed for the CHB anatomical variant.

Results

Different possibilities of CHB were found in 6/200 cases, five males and one female. The symmetrical overlap of the thyroid cartilage by the hyoid body was found in one male case. In three cases, two males and one female, there was asymmetrical overlapping due to tilted hyoid bones. In one male case with such asymmetrical CHD, an ossified anterior longitudinal ligament was noted: the tips of the superior horns of the thyroid cartilage reached lateral to it, thus being retropharyngeal. A different male case had a lowered hyoid with a greater horn fused to the superior horn of the thyroid cartilage, with an interposed ossified triticeal cartilage. In the last male case, the right greater horn collapsed laterally to an ossified triticeal cartilage fused with the thyroid cartilage's superior horn.

Conclusions

The CHB is an undeniable anatomical possibility of an atavism that alters conventional anatomical and surgical landmarks. Different anatomical components of the hyoid bone can descend uni- or bilaterally.

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Titel: Lowered hyoid bone overlapping the thyroid cartilage in CT angiograms
verfasst von: Mugurel Constantin Rusu
Răzvan Costin Tudose
Alexandra Diana Vrapciu
Şerban Arghir Popescu
Publikationsdatum: 05.02.2024
Verlag: Springer Paris
Erschienen in: Surgical and Radiologic Anatomy / Ausgabe 3/2024
Print ISSN: 0930-1038
Elektronische ISSN: 1279-8517
DOI: https://doi.org/10.1007/s00276-024-03300-5

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