PDF(Pubmed)
Abstract：
BACKGROUND A mass in the parotid gland usually indicates parotid gland neoplasia. Warthin tumors or pleomorphic adenomas are common differential diagnoses. Less frequently, other differential diagnoses and sites of origin are considered. Schwannomas are rare, benign tumors in the head and neck region. Even more rarely, these tumors occur in the intraparotid course of the facial nerve. In the following, we report about 2 patients in whom a mass in the right parotid gland was found incidentally during magnetic resonance imaging (MRI). CASE REPORT We reviewed data from the literature on intraparotid facial nerve schwannomas (IPFNS) and compared them with those from our cases. The focus was on data such as clinical history, clinical symptoms, electroneurography, and various imaging modalities, such as ultrasonography and MRI combined with diffusion-weighted imaging. CONCLUSIONS It is challenging to distinguish facial nerve schwannomas from other neoplasms. Patient\'s history, clinical symptoms, MRI examination with diffusion-weighted imaging, and high-resolution ultrasound imaging are decisive factors for diagnosis and should be performed when IPFNS is suspected. Diagnosis and therapy for IPFNS remain challenging. A wait-and-scan approach could be an option for patients with small tumors and good facial nerve function. On the other hand, patients with advanced tumors associated with limited facial nerve function can benefit from surgical approaches or stereotactic radiosurgery.
摘要：
背景技术腮腺中的肿块通常指示腮腺瘤形成。Warthin肿瘤或多形性腺瘤是常见的鉴别诊断。不那么频繁,考虑了其他鉴别诊断和起源部位。神经鞘瘤很少见,头颈部良性肿瘤。甚至更罕见，这些肿瘤发生在面神经的腮腺内。在下文中，我们报道了2例患者在磁共振成像（MRI）中偶然发现右侧腮腺肿块。病例报告我们回顾了有关腮腺内面神经神经鞘瘤（IPFNS）的文献数据，并将其与我们病例的数据进行了比较。重点是临床病史等数据，临床症状,神经电描记术,和各种成像模式，如超声和MRI结合弥散加权成像。结论将面神经神经鞘瘤与其他肿瘤区分开来具有挑战性。患者病史,临床症状,磁共振弥散加权成像检查,和高分辨率超声成像是诊断的决定性因素,当怀疑IPFNS时,应进行诊断.IPFNS的诊断和治疗仍然具有挑战性。对于小肿瘤和面神经功能良好的患者，等待和扫描方法可能是一种选择。另一方面,与面神经功能受限相关的晚期肿瘤患者可从手术入路或立体定向放射外科手术中获益.
