An accurate preoperative diagnosis of parotid tumors is essential for selection and planning of the surgical treatment. Various modern cross-sectional imaging and cytologic investigations can support differential diagnosis of parotid tumors. The aim of this study was to achieve a comprehensive and updated review of modern imaging and cytologic investigations used in parotid tumor diagnosis, based on the latest literature data. This literature review could serve as a guide for clinicians in selecting different types of investigations for preoperative differential diagnosis of parotid tumors. Magnetic resonance imaging (MRI) with its dynamic and advanced sequences is the first-line imaging investigation used in differentiating parotid tumors. Computed tomography (CT) and positron emission tomography (PET)-CT provide limited indications in differentiating parotid tumors. Fine needle aspiration biopsy and core needle biopsy can contribute with satisfactory results to cytological diagnosis of parotid tumors. Dynamic MRI with its dynamic contrast-enhanced and diffusion-weighted sequences provides the best accuracy for preoperative differential diagnosis of parotid tumors. CT allows the best evaluation of bone invasion, being useful when MRI cannot be performed, and PET-CT has value in the follow-up of cancer patients. The dual cytological and imaging approach is the safest method for an accurate differential diagnosis of parotid tumors.

中文翻译：

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腮腺肿瘤术前诊断中的横断面成像和细胞学研究——更新的文献综述。

腮腺肿瘤的准确术前诊断对于手术治疗的选择和计划至关重要。各种现代横断面成像和细胞学检查可以支持腮腺肿瘤的鉴别诊断。本研究的目的是根据最新的文献数据，对腮腺肿瘤诊断中使用的现代影像学和细胞学研究进行全面和更新的回顾。该文献综述可为临床医生选择不同类型的腮腺肿瘤术前鉴别诊断提供指导。具有动态和先进序列的磁共振成像 (MRI) 是用于区分腮腺肿瘤的一线成像研究。计算机断层扫描 (CT) 和正电子发射断层扫描 (PET)-CT 在鉴别腮腺肿瘤方面提供的指征有限。细针抽吸活检和空心针活检对腮腺肿瘤的细胞学诊断具有满意的效果。动态 MRI 及其动态对比增强和扩散加权序列为腮腺肿瘤的术前鉴别诊断提供了最佳准确性。CT 可以最好地评估骨浸润，在无法进行 MRI 时很有用，并且 PET-CT 在癌症患者的随访中具有价值。双重细胞学和影像学方法是准确鉴别诊断腮腺肿瘤的最安全方法。细针抽吸活检和空心针活检对腮腺肿瘤的细胞学诊断具有满意的效果。动态 MRI 及其动态对比增强和扩散加权序列为腮腺肿瘤的术前鉴别诊断提供了最佳准确性。CT 可以最好地评估骨浸润，在无法进行 MRI 时很有用，并且 PET-CT 在癌症患者的随访中具有价值。双重细胞学和影像学方法是准确鉴别诊断腮腺肿瘤的最安全方法。细针抽吸活检和空心针活检对腮腺肿瘤的细胞学诊断具有满意的效果。动态 MRI 及其动态对比增强和扩散加权序列为腮腺肿瘤的术前鉴别诊断提供了最佳准确性。CT 可以最好地评估骨浸润，在无法进行 MRI 时很有用，并且 PET-CT 在癌症患者的随访中具有价值。双重细胞学和影像学方法是准确鉴别诊断腮腺肿瘤的最安全方法。PET-CT在癌症患者的随访中具有价值。双重细胞学和影像学方法是准确鉴别诊断腮腺肿瘤的最安全方法。PET-CT在癌症患者的随访中具有价值。双重细胞学和影像学方法是准确鉴别诊断腮腺肿瘤的最安全方法。