Parotid tumors: Differentiation of benign and malignant tumors with quantitative sonographic analyses

Koichi Yonetsu, Masafumi Ohki, Seiji Kumazawa, Sato Eida, Misa Sumi, Takashi Nakamura

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

We asked in this study if the quantitative sonographic analysis could diagnose effectively the benign and malignant tumors of the parotid gland. Sonographic analyses using mean grey values and SDs of echo levels were performed on the 21 benign tumors and 22 malignant tumors of the parotid glands. Both the mean grey level and the SD of the echo levels were significantly and characteristically different among the different parotid tumor groups. Discrimination analysis showed that, compared with single uses, a combined use of these two criteria improved diagnostic accuracy to 81% (carcinoma vs. pleomorphic adenomas), 93% (malignant lymphomas vs. pleomorphic adenomas), 91% (carcinomas vs. malignant lymphomas), 100% (pleomorphic adenomas vs. Warthin's tumors), 100% (carcinomas vs. Warthin's tumors) and 100% (malignant lymphomas vs. Warthin's tumors). These findings suggest that quantitative sonographic analysis is effective in differentiating benign and malignant tumors of the parotid gland. (E-mail: taku@net.nagasaki-u.ac.jp)

Original languageEnglish
Pages (from-to)567-574
Number of pages8
JournalUltrasound in Medicine and Biology
Volume30
Issue number5
DOIs
Publication statusPublished - May 1 2004

All Science Journal Classification (ASJC) codes

  • Radiological and Ultrasound Technology
  • Biophysics
  • Radiology Nuclear Medicine and imaging

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