Lowered hyoid bone overlapping the thyroid cartilage in CT angiograms

IF 1.2 4区医学 Q3 ANATOMY & MORPHOLOGY

Surgical and Radiologic Anatomy Pub Date : 2024-02-05 DOI:10.1007/s00276-024-03300-5

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

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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.

Abstract Image

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CT 血管造影中覆盖甲状软骨的舌骨降低

背景在以往的研究中，甲状软骨腹侧被塌陷的舌骨（CHB）包围的情况很少见。我们的目的是观察在大量一致的计算机断层扫描（CT）文件中是否能发现这些畸形，并对其进行详细解剖。其中一例男性患者的甲状软骨与舌骨体对称重叠。在三例病例（两男一女）中，由于舌骨倾斜，出现了不对称的重叠。在一名患有这种不对称CHD的男性病例中，发现了一条骨化的前纵韧带：甲状软骨上角的尖端伸到了它的外侧，因此是咽后的。另一个男性病例的舌骨较低，大角与甲状软骨上角融合，中间有骨化的三叶软骨。在最后一例男性病例中，右侧大角向侧方塌陷，与甲状软骨上角融合成骨化的三叶软骨。舌骨的不同解剖成分可以单侧或双侧下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Surgical and Radiologic Anatomy ANATOMY & MORPHOLOGY-RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

CiteScore

2.70

自引率

14.30%

发文量

183

审稿时长

4-8 weeks

期刊介绍： Anatomy is a morphological science which cannot fail to interest the clinician. The practical application of anatomical research to clinical problems necessitates special adaptation and selectivity in choosing from numerous international works. Although there is a tendency to believe that meaningful advances in anatomy are unlikely, constant revision is necessary. Surgical and Radiologic Anatomy, the first international journal of Clinical anatomy has been created in this spirit. Its goal is to serve clinicians, regardless of speciality-physicians, surgeons, radiologists or other specialists-as an indispensable aid with which they can improve their knowledge of anatomy. Each issue includes: Original papers, review articles, articles on the anatomical bases of medical, surgical and radiological techniques, articles of normal radiologic anatomy, brief reviews of anatomical publications of clinical interest. Particular attention is given to high quality illustrations, which are indispensable for a better understanding of anatomical problems. Surgical and Radiologic Anatomy is a journal written by anatomists for clinicians with a special interest in anatomy.