STUDY ON THE CORRELATION BETWEEN THE CYTOLOGICAL AND HISTOLOGICAL TESTS IN THE DIAGNOSTICS OF CANINE SPONTANEOUS MAMMARY NEOPLASMS

Abstract

Vet. Med., 9, No 3, 211−219. In the current study, the correlation between cytological and histological diagnoses in the study of 70 cases of spontaneous canine mammary tumours was investigated. This comparison was performed only with regard to the malignancy and the type of the neoplastic formations. Of all tested tumours, a correct cytological diagnosis was established for 57 of them (81.4%), while an incorrect diagnosis was established for 13 (18.6%). Of all tested tumours, there were 5 (7.1%) false positive results, and 8 (11.4%) false negative results. From a total of 13 benign tumours, the cytological diagnosis was cor-rect for 11 tumours (84.6%). There were 2 false positive diagnoses among them, which constituted 15.4 % of all benign tumours. From a total of 57 malignant tumours, the diagnosis was correct for 46 of them (80.7%). There were 3 false positive and 8 false negative diagnoses, which constituted 5.3% and 14.0 % of the total number, respectively. Key words: cytological diagnostics, dogs, mammary gland, tumours