Schade G, Ussmüller J, Leuwer R
Universitäts-Krankenhaus Eppendorf, HNO-Klinik, Hamburg.
Laryngorhinootologie. 1998 Jun;77(6):337-41. doi: 10.1055/s-2007-996984.
The sensitivity of diagnostic imaging of processes in the parotid gland has been increased by improved spatial resolution, yet specificity remains unchanged. The purpose of this study was to determine whether the low-flow color duplex technique alters the specificity of B-mode ultrasonography.
Forty-one patients with tumors of the parotid gland were examined by color duplex echography as well as histologically. Twenty-eight of the 41 patients had benign tumors and 13 had malignant disease. In 17 of 41 patients, color duplex ultrasonography failed to detect any vascularization within the tumor. Histopathological examination showed that 3 of these 17 tumors were malignant and 14 of 17 were benign. Intranodal vascularization was detected in 24 cases. Ten of these patients were found to have malignant tumors of the parotid gland; 14 had benign parotid tumors.
Our present findings show that marked intratumoral vascularization especially appears in malignant tumors. In contrast to lymph nodes, the location and texture of intranodal blood vessels do not provide information about the nature of the neoplasm.
Low flow duplex ultrasonography does not increase the specificity of preoperative examination in tumors of the parotid gland.
腮腺病变诊断性成像的敏感性因空间分辨率提高而有所增加，但特异性仍未改变。本研究的目的是确定低流量彩色双功技术是否会改变B型超声检查的特异性。
对41例腮腺肿瘤患者进行了彩色双功超声检查及组织学检查。41例患者中，28例为良性肿瘤，13例为恶性疾病。41例患者中有17例彩色双功超声检查未检测到肿瘤内有任何血管形成。组织病理学检查显示，这17例肿瘤中有3例为恶性，14例为良性。24例检测到结内血管形成。这些患者中有10例被发现患有腮腺恶性肿瘤；14例患有腮腺良性肿瘤。
我们目前的研究结果表明，明显的肿瘤内血管形成尤其出现在恶性肿瘤中。与淋巴结不同，结内血管的位置和纹理并不能提供有关肿瘤性质的信息。
低流量双功超声检查不会提高腮腺肿瘤术前检查的特异性。
