RT Journal Article SR Electronic T1 Value of the Nottingham Histological Grading Parameters and Nottingham Prognostic Index in Canine Mammary Carcinoma JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 4219 OP 4227 VO 35 IS 7 A1 SANTOS, MARTA A1 CORREIA-GOMES, CARLA A1 MARCOS, RICARDO A1 SANTOS, ANDREIA A1 DE MATOS, AUGUSTO A1 LOPES, CARLOS A1 DIAS-PEREIRA, PATRÍCIA YR 2015 UL http://ar.iiarjournals.org/content/35/7/4219.abstract AB Background/Aim: In the past decade, the human Nottingham histological grade (NHG) has been applied to canine mammary carcinomas (CMC). The Nottingham Prognostic Index (NPI) enables identification of more aggressive human breast cancer. The prognostic value of grading parameters and NPI has never been detailed in CMC. The aim of the present study was to assess the prognostic value of NHG, its parameters and NPI. Materials and Methods: Univariable and multivariable analyses were used to assess the prognostic value of NHG, its parameters and NPI in a cohort of 59 dogs with CMC. Results: Short disease-free interval and overall survival were associated with higher NHG, particularly of grade III. Only high nuclear pleomorphism score was significantly associated with poor survival. NPI exhibited a strong predictive value for disease progression. Conclusion: NHG, nuclear pleomorphism and NPI have prognostic value in CMC. Nuclear pleomorphism is an independent prognostic factor. Evaluation of nuclear pleomorphism should be included in routine pathology reports.