MALIGNANT-MELANOMA IN 20-MHZ B-SCAN SONOGRAPHY

被引:68
作者
HOFFMANN, K
JUNG, J
ELGAMMAL, S
ALTMEYER, P
机构
[1] Department of Dermatology, Ruhr University, St. Joseph Hospital Bochum, D-W-1630 Bochum 1
关键词
MALIGNANT MELANOMA; ULTRASOUND; B-SCAN; TUMOR THICKNESS; SUBTUMORAL INFILTRATE; WEIGHTED SONOMETRY; SONOGRAPHY;
D O I
10.1159/000247403
中图分类号
R75 [皮肤病学与性病学];
学科分类号
100206 ;
摘要
In order to assess the value of 20-MHz sonography in the pre-operative diagnosis of malignant melanomas, 54 melanomas were examined. The pre-operative ultrasound scans were compared with corresponding histological sections from the excised tumours. A computer-aided measurement of the tumour thickness (sonometry) and the internal echo density (densitometry) was performed in the ultrasound scans. The melanomas appeared as largely echolucent zones. There was a significant correlation between the tumour thickness measured in the ultrasound scan and those measured in the histological sections (r=0.938, p<0.001). As a rule the tumour thickness determined by sonometry were greater than the histometrically determined values. Subtumoral inflammatory infiltrate and other hypo-echoic structures in the region of the tumour are possible causes of the discrepancies. Some of those hypo-echoic structures can be identified and disregarded in B scan measurement. Even if a definite differential diagnosis is not possible on the basis of the ultrasound scan alone, 20-MHz sonography provides additional information which can be of use in surgical planning.
引用
收藏
页码:49 / 55
页数:7
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