Ultrasonographic findings addition for the differentation of malign and benign lenfadenopaty

Abstract aim: the aim of this study was to evaluate efficacy of b mod us and colour doppler us on the differential diagnosis of benign and malign cervical lymph nodes by comparing fine-needle aspiration biopsy results, and display the fact that whether colour doppler us had a positive effect upon the diagnosis value of b mod us analysis when they were combined. material and method: fourty nine patients were included in this study. b mod us and colour doppler us were practiced on all the cases. the analysis were done with sdu2200 (shimadzu, tokyo, japan) coloured doppler device by using 7.5 mhz lineer transduser probe. the biggest cervical lymph node was included to the study. the efficiency of b mod us and colour doppler us facts was rated in the values of sensibility, specificity, positive and negative provisions by taking based on the histopathological results. findings: in the evaluation of 49 cases, the lymph nodes diagnosed as malign by means of b mod us or colour doppler us or with both of them were considered to be malign; the lymph nodes were assumed as benign if they were diagnosed as benign by using the both methods. as a result, 21 lymph nodes were considered to be malign and 28 lymph nodes were benign. in the fact that when the 49 patients that were taken up into the study, were evaluated with one of the b mod us and colour doppler us or with both of them, the lymph nods that take malign diagnosis are thought as malign, according to both investigations, when lymph nods that take benign diagnosis are assumed as benign, they are thought as 21 lymph nods malign and 28 lymph nods benign. conclusion: when lymph nodes were assumed as malign with the existence of at least two of the malignancy criteria defined for b mod us (rounded shape, longitudinal/ transverse diameter percentage, loss of hilar echogenicity, contour lobulation and necrosis of lymph nodes), the rates of sensitivity and specificity were clearly high. in addition to these findings, vascular pattern and spectral wave analysis made in the benign and malign lymph nodes increased the rates of sensitivity and specificity and decreased the number of false negative facts noticeably. when rounded shape define for b mod us with malignancy, longitunidal/transvers diameter percentage, loss of hilar echogenicity, contour lobulation and lymph nods whose necrosis existence criterias are positive as at least two of those, are assumed as malign, the rates of sensitivite and spesifty are clearly high. in addition to these findings, it is thought that vasculer patern and spectral wave analysis that is looked up into the benign and malign lymph nods, redoubles the rates of sensitivity and specifity and it is also thought that it decreases the number of false negative facts noticeably.