Objective : To explore the clinic characteristic petrous bone cholesteatoma.
目的：探讨岩部胆脂瘤的临床特征及手术方法。
Objective: to explore the clinic characteristic of petrous bone cholesteatoma.
前言：目的：探讨岩部胆脂瘤的临床特征及手术方法。
The characteristic trigeminoma appeared as dumb bell with erosion of petrous bone.
三叉神经瘤表现为特征性哑铃形伴岩骨尖骨质破坏。
Streak-like occur most frequently in the bony structures at the base of the skull and the petrous bone region.
条状伪影最常发生在头骨和太阳穴的多骨结构。
The roots of trigeminal nerves thickening with dysfunction and erosion of petrous bone were found in most cases.
三叉神经根增粗及功能异常，常伴岩骨、颅底骨质吸收、破坏。
Objective to probe abrasion technique of the petrous bone via modified partial labyrinthectomy petrous apicectomy (PLPA) approach.
目的探讨改良部分迷路切除岩骨尖入路(PLPA)的岩骨磨除技术。
The jugular foramen can be exposed after removal of the mastoid process and the petrous bone under the labyrinth superiorly and by resection of jugular process posteriorly.
通过切除颈静脉突和迷路下骨质分别自后、外、下和上方显露颈静脉孔。
Conclusion The PSA can be accurately calculated by CT measurement, it has very important value in the imaging diagnosis of ear and petrous bone diseases for the head radiography.
结论通过CT测量可以方便、精确地计算岩矢角的大小，对于头颅复杂部位的特殊摄影，提高耳部及岩骨等病变的影像诊断具有较高的价值。
Objective to study the body surface location of the transverse sinus and sigmoid sinus to provide the anatomic information to location of the bone window for petrous bone-associated operation.
目的确定横窦、乙状窦的体表定位，为岩骨相关手术的骨窗定位提供解剖学资料。
Objective to study the body surface location of the transverse sinus and sigmoid sinus to provide the anatomic information to location of the bone window for petrous bone-associated operation.
目的确定横窦、乙状窦的体表定位，为岩骨相关手术的骨窗定位提供解剖学资料。
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