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颞下窝位于颅底之下,下颌升支的深部。其形状像一个倒立的锥体,由顶部、前、外、内壁,后缘和下部的尖端组成。窝内含有多束神经和肌肉组织。颞下窝通过裂隙和邻近的口腔、上颌窦、眼眶、鼻腔、颅底相联系,故易受这些部位的原发性疾病的侵犯。颞下窝的原发性肿瘤极少见,未播散之前很难发现。作者在22年中仅见到8例。临床上,颧弓以上的颞部膨隆或下颌升支切迹之间的小隆起,表明肿物已扩展到颞窝。在颞肌之深处,鼻咽部外侧壁被推向内,说明上缩肌和咽颅底筋膜移位。同样,肿物通过眶下裂向眶内扩展,眼球可被推向前突出。如向口腔方向扩散,一般检查很难发现,因口腔粘膜不易被破坏,但能在下颌
The inferior temporal fossa is located under the base of the skull and the deep part of the mandibular ascending branch. It is shaped like an inverted cone consisting of top, front, outer, inner walls, trailing edge and lower tip. The nest contains multiple bundles of nerve and muscle tissue. Infratemporal fossa through the fissure and the adjacent oral cavity, maxillary sinus, orbit, nasal cavity, skull base phase, it is susceptible to these parts of the primary disease violations. Infratemporal fossa is rare in primary tumors and is difficult to detect before dissemination. The author saw only eight cases in 22 years. Clinically, the small bulge between the temporal bulge or mandibular ascending branch notch above the zygomatic arch indicates that the tumor has expanded to the temporal fossa. In the depths of the temporalis muscle, the lateral wall of the nasopharynx is pushed inward, illustrating the transposition of the supra-sternal and pharyngeal fascia. Similarly, the tumor through the infraorbital fissure orbital expansion, the eye can be pushed forward protruding. If the spread to the oral direction, the general inspection is difficult to find, because oral mucosa is not easily destroyed, but in the jaw