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Medicina is published by MDPI from Volume 54 Issue 1 (2018). Articles in this Issue were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence. Articles are hosted by MDPI on as a courtesy and upon agreement with Lithuanian Medical Association, Lithuanian University of Health Sciences, and Vilnius University.
Open AccessArticle

Preoperative assessment of skin tumor thickness and structure using 14-MHz ultrasound

Department of Skin and Venereal Diseases, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
Ultrasound Institute, Kaunas University of Technology, Kaunas, Lithuania
Author to whom correspondence should be addressed.
Medicina 2014, 50(3), 150-155;
Received: 27 November 2012 / Accepted: 3 June 2014 / Published: 13 August 2014
Objective: The aim of this study was to compare the relationship between skin tumor thickness and homogeneity and to evaluate the accuracy of 14-MHz ultrasound while measuring the thickness of different skin tumors.
Material and methods: The ultrasonographic and histological analysis of 72 skin tumors was performed. Preoperative vertical tumor thickness (T) and structure of 12 melanomas, 34 melanocytic nevi and 26 basal cell carcinomas was assessed by 14-MHz ultrasonography. After the tumors were excised the vertical thickness measurement (Breslow index, pT) was performed by pathologist. According to the histological thickness all skin tumors were divided to thin (≤1 mm) and thick (>1 mm). The accuracy of the 14-MHz ultrasound measurements and correlation between the ultrasonographic and histological tumor thickness were estimated.
Results: Homogeneous structure was assessed for all thin (≤1 mm) and the majority (81.3%) of thick (>1 mm) melanocytic skin tumors. Nonhomogeneous structure was estimated in thin and thick basal cell carcinomas, accordingly 42.9% and 31.9%. Measurements of T and pT correlated moderately in thick (>1 mm) tumors (r = 0.694), while in thin (≤1 mm) tumors correlation was low (r = 0.336). Moderate correlation between ultrasonographic and histological thickness was computed for melanocytic skin tumors as well as for basal cell carcinomas (r = 0.564 and r = 0.690).
Conclusions: Medium frequency ultrasound is not a reliable tool for the precise measurement of thin (≤1 mm) skin tumors. Ultrasonography using a 14-MHz frequency transducer enables more precisely to measure the thickness of basal cell carcinoma than melanocytic skin tumors. The 14-MHz ultrasound is support tool to suggest the morphologic type of skin tumor.
Keywords: Ultrasound; Skin tumor thickness; Melanocytic skin tumors; Basal cell carcinoma Ultrasound; Skin tumor thickness; Melanocytic skin tumors; Basal cell carcinoma
MDPI and ACS Style

Kučinskienė, V.; Samulėnienė, D.; Gineikienė, A.; Raišutis, R.; Kažys, R.; Valiukevičienė, S. Preoperative assessment of skin tumor thickness and structure using 14-MHz ultrasound. Medicina 2014, 50, 150-155.

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