Carvalho, F., Cintra, T.C.F. and Chammas, M.C. 2015. Elastography: Principles and considerations for clinical research in veterinary medicine cibele. J. Vet. Med. Anim. Health, 7(3): 99-110.

Cassali, G.D., Lavalle, G.E., De Nardi, A.B., Ferreira, E., Bertagnolli, A.C., Estrela-Lima, A., Alessi, A.C., Daleck, C.R., Salgado, B.S., Fernandes, C.G. and Sobral, R.A. 2011. Consensus for the diagnosis, prognosis and treatment of canine mammary tumors. Braz. J. Vet. Pathol., 4(2): 153-180.

Davoudi, Y., Borhani, B., Rad, M.P. and Matin, N. 2014. The role of Doppler sonography in distinguishing malignant from benign breast lesions. J. Med. Ultrasound, 22(2): 92-95.

de Bulnes, A.G., Fernandez, P.G., Aguirre, A.M. and de la Muela, M.S. 1998. Ultrasonographic imaging of canine mammary tumours. Vet. Rec., 143(25): 687-689.

Díaz, C.D.A., Estrada, L.M., Pascual, A.M., Pelayo, A.A., and Ortega, L.M. 2018. Adenomyoepithelioma of the breast: Report of four cases and literature review. Rev. Esp. Patol., 51(1): 55-60.

Dixon, J.M., Walsh, J., Paterson, D., and Chetty, U. 1992. Colour Doppler ultrasonography studies of benign and malignant breast lesions. Br. J. Surg., 79(3): 259-260.

Feliciano, M.A.R., Silva, A.S., Peixoto, R.V.R., Galera, P.D., and Vicente, W.R.R. 2012a. Clinical, histopathological and immunohistochemical study of mammary neoplasm in bitches. Arq. Bras. Med. Vet. Zootec., 64(5): 1094-1100.

Feliciano, M.A.R., Vicente, W.R.R., and Silva, M.A.M. 2012b. Conventional and Doppler ultrasound for the differentiation of benign and malignant canine mammary tumours. J. Small Anim. Pract., 53(6): 332-337.

Feliciano, M.A.R., Uscategui, R.A.R., Maronezi, M.C., Simões, A.P.R., Silva, P., Gasser, B., Pavan, L., Carvalho, C.F., Canola, J.C. and Vicente, W.R.R. 2017. Ultrasonography methods for predicting malignancy in canine mammary tumors. PloS One, 12(5): e0178143.

Feliciano, M.A.R., Ramirez, R.A.U., Maronezi, M.C., Maciel, G.S., Avante, M.L., Senhorello, I.L.S., Mucédola, T., Gasser, B., Carvalho, C.F. and Vicente, W.R.R. 2018. Accuracy of four ultrasonography techniques in predicting histopathological classification of canine mammary carcinomas. Vet. Radiol. Ultrasound, 59(4): 444-452.

Forrest, L.J. 2007. Diagnostic imaging in oncology. In: Withrow and Macewen’s small animal clinical oncology, 4th Ed., (Eds) Withrow, S. and Vail, D. Saunders Elsevier, St. Louis, Missouri, pp. 97-111

Gokhale, S. 2009. Ultrasound characterization of breast masses. Indian J. Radiol. Imaging, 19(3): 242.

Nair, B.C., Saikumar, G., Sharma, R., and Paliwal, O.P. 2007. A study on spontaneous canine neoplasms in Bareilly, UP. Indian J. Vet. Pathol., 31(2): 166-168.

Nyman, H.T., Kristensen, A.T., Lee, M.H., Martinussen, T., and Mcevoy, F.J. 2006a. Characterization of canine superficial tumors using gray-scale B mode, color flow mapping, and spectral doppler ultrasonography - a multivariate study. Vet. Radiol. Ultrasound, 47(2): 192-198.

Nyman, H.T., Nielsen, O.L., McEvoy, F.J., Lee, M.H., Martinussen, T., Hellmén, E., and Kristensen, A.T. 2006b. Comparison of B-mode and Doppler ultrasonographic findings with histologic features of benign and malignant mammary tumors in dogs. AM. J. Vet. Res., 67(6): 985-991.

Ohlerth, S. and Kaser-Hotz, B. 2003. A review of Doppler sonography for the assessment of tumour vascularity. Vet. Comp. Oncol.,1: 121–130.

Patel, M.P., Ghodasara, D.J., Raval, S.H., and Joshi, B.P. 2019. Incidence, Gross Morphology, Histopathology and Immunohistochemistry of Canine Mammary Tumors. Indian J. Vet. Sci. Biotechnol., 14(4): 40-44.

Snedecor, G. W. and Cochran, W. G. 2004. Statistical methods. 8th Edn., East West Press Pvt. Ltd., New Delhi.

Soler, M., Dominguez, E., Lucas, X., Novellas, R., Gomes- Coelho, K.V., Espada, Y. and Agut, A. 2016. Comparison between ultrasonographic findings of benign and malignant canine mammary gland tumours using B-mode, colour Doppler, power Doppler and spectral Doppler. Res. Vet. Sci., 107: 141-146.

Stuhrmann, M., Aronius, R., and Schietzel, M., 2000. Tumor vascularity of breast lesions: potentials and limits of contrastenhanced Doppler sonography. A.J.R. Am. J. Roengenol., 175(6): 1585-1589.

Vascellari, M., Baioni, E., Ru, G., Carminato, A. and Mutinelli, F. 2009. Animal tumour registry of two provinces in northern Italy: incidence of spontaneous tumours in dogs and cats. B.M.C. Vet. Res., 5(1): 39.