视交叉嵴：发生率、分类及临床意义。

Chiasmatic Ridge: Incidence, Classification, and Clinical Implications.

机构信息

Department of Anatomy, Mersin University Faculty of Medicine, Mersin.

Department of Anatomy, Gaziantep University Faculty of Medicine, Gaziantep, Turkey.

出版信息

J Craniofac Surg. 2021;32(5):1910-1912. doi: 10.1097/SCS.0000000000007291.

DOI:10.1097/SCS.0000000000007291

PMID:33252537

Abstract

OBJECTIVE

The study aimed to identify the chiasmatic ridge (CR) morphology and to discuss its surgical significance.

METHODS

The suprasellar region of 90 adult dry skulls with unknown ages, sexes, or nationalities was examined to record the shape and incidence of the CR.

RESULTS

The CR was found in 14 (15.56%) of 90 dry skulls. The ridge was classified into 3 types, taking into account its shape, incidence (presence/absence), and the risk of residual tumor formation. The absence of the CR was named as Type 1 (76 cases, 84.44%). The bony extension without a hidden area was identified as Type 2 (8 cases, 8.89%), while the bony extension with a hidden area as Type 3 (6 cases, 6.67%).

CONCLUSION

Type 3 CR (which has an evident hidden area beneath the ridge) should be taken into account by neurosurgeons to eliminate possible residual tumor risk during removal of tumors (eg, meningioma) with subfrontal or supraorbital approaches.

摘要

目的

本研究旨在确定视交叉嵴（CR）的形态，并探讨其手术意义。

方法

检查 90 例成人干颅骨的鞍上区，这些颅骨的年龄、性别和国籍未知，以记录 CR 的形状和发生率。

结果

在 90 例干颅骨中，发现 14 例（15.56%）存在 CR。根据其形状、发生率（存在/缺失）和残留肿瘤形成的风险，将嵴分为 3 型。CR 缺失命名为 1 型（76 例，84.44%）。无隐藏区的骨延伸被确定为 2 型（8 例，8.89%），而有隐藏区的骨延伸则被确定为 3 型（6 例，6.67%）。