These are usually lateral on the nostrils and anterolateral to the excurrent apertures, but may be anterior to the excurrent apertures only.

这些通常在鼻孔侧面的与流出孔前外侧的，但是可能只有位于流出孔前的。

14 cases were transglottic carcinoma showing extension of mass across ventriculus larynges, narrowing cavity anterior to throat, and damaging cricoid cartilage and spooncartilage.

跨声门癌14例,表现为较大组织肿物跨越喉室生长,喉前皮腔受压变窄,环状软骨、勺状软骨破坏。

Findings: Smooth midline cavity separating the frontal horns of the lateral ventricles (anterior to the foramen of Monro) and appearing isodense with cerebrospinal fluid.

中线上位于侧脑室额角之间，孟氏孔之前的囊样病变，与脑积液呈等信号。

Performation of surgical procedures anterior to ethmoid bulla can avoid risks of the other models, therefore, endoscopic frontal sinusotomy in the route anterior to ethmoid bulla is a safe model.

结论通过鼻内镜对额窦开口及周围解剖结构的观察，认为星状裂作为恒定的解剖标志是识别额窦开口的关键区域。筛泡前径路是鼻内镜下额窦开放的安全入路，能避免其他径路存在的某些风险。

Disease from surrounding structures can invade the masticator space via the pterygopalatine fossa, the buccal space immediately anterior to the ramus, the foramen ovale, or by way of direct invasion.

咀嚼肌间隙临近的病变可循翼腭窝、颊间隙、上颌窦、卵圆孔等途径侵及咀嚼肌间隙。

The common bile duct passes inferiorly, anterior to the epiploic foramen, where it is anterior to the right edge of the portal vein and on the right side of the hepatic artery.

胆总管下行于网膜孔前方，位于门静脉右缘前方和肝动脉右侧。