A case report of rare variant: well-developed paracondylar process.

IF 1.4 4区医学 Q2 Medicine

Surgical and Radiologic Anatomy Pub Date : 2024-12-18 DOI:10.1007/s00276-024-03552-1

Kaan Çimen

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引用次数: 0

Abstract

Purpose: The paracondylar process (PCP) is defined as the bony prominence extending from the outer side of the condyles on the outer surface of the occipital bone downwards towards the transverse process of the atlas (TPA). In this case report, the morphometry of the rarely seen PCP and its morphometric data with neighboring structures are evaluated.

Case report and results: Unilateral (right-sided) PCP was observed in the cranium of a Caucasian female. The base of the PCP, located on the outer side of the occipital condyle (OC) and just behind the jugular foramen (JF), was broader than its apex and had a molar shape. The base width was measured as 13.6, and the top width was measured as 8.7 mm. PCP length was measured at 15.2 mm. The base distance of the PCP, which was located very closely with the OC and JF, to these structures was measured as 0.42 and 0.59 mm, respectively. The distance to the spinous process (SP) and mastoid process (MP) of the temporal bone was relatively greater and was measured as 1.07 and 15.5 mm, respectively.

Conclusions: The rare PCP reported, in this case, was well-developed and molar type. It is likely large enough to articulate with the TPA regarding length. However, this could not be shown because the matched atlas could not be found. We believe that supporting the close adjacencies of PCP with OC and JF with metric data may benefit clinicians working in regional surgery.

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罕见变异1例：髁旁突发育良好。

目的：髁旁突（PCP）被定义为从枕骨外表面的髁外侧向下延伸至寰椎横突（TPA）的骨突。在这个病例报告中，对罕见的PCP及其与邻近结构的形态测量数据进行了评估。病例报告和结果：在白种人女性颅骨中观察到单侧（右侧）PCP。PCP的基部位于枕髁（OC）外侧，颈静脉孔（JF）后方，比其顶端宽，呈磨牙状。底部宽度测量为13.6 mm，顶部宽度测量为8.7 mm。PCP长度为15.2 mm。与OC和JF非常接近的PCP与这些结构的基距分别为0.42和0.59 mm。与颞骨棘突（SP）和乳突（MP）的距离相对较大，分别为1.07和15.5 mm。结论：本病例罕见的PCP发育良好，为磨牙型。它可能足够大，足以在长度上与贸易促进权相一致。然而，由于无法找到匹配的地图集，因此无法显示这一点。我们认为，支持PCP与OC和JF密切相关的度量数据可能有利于临床医生在区域手术中工作。

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 Medicine-Pathology and Forensic Medicine

CiteScore

2.40

自引率

14.30%

发文量

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.