Ultrasonographic evaluation of depth width ratio (D/W) of benign and malignant mammary tumors in dogs

作者：Tagawa Michihito; Kanai Eiichi^*; Shimbo Genya; Kano Mikiya; Kayanuma Hideki

来源：Journal of Veterinary Medical Science, 2016, 78(3): 521-524.

DOI：10.1292/jvms.15-0456

• canine
• depth width ratio
• mammary tumor
• ultrasound

Depth-width ratio (D/W) is the only quantitative item in the criteria recommended by the Japanese Ultrasound Society for the evaluation of breast tumors in humans. However, the usefulness of the D/W has not been evaluated in dogs. Eighty-six mammary masses in 34 female dogs underwent ultrasonographic examination to determine the D/W and other characteristics. Results of ultrasonographic and histopathologic examinations were compared. The D/W of malignant tumors was significantly greater than that of benign tumors, and it had a sensitivity of 56.3% and a specificity of 92.9% for the diagnosis of malignancy when the threshold of D/W was 0.7. In addition, irregular margin, polymorphous shape and heterogeneous internal echographic characteristics were correlated with malignancy.

• 出版日期2016-3