OnLine Journal of Biological Sciences

Prevalence and Histopathologic Analyses of Mammary Tumors in Female Dogs in the Northeast of Algeria

Zahra GABLI, Leila BEDDAR, Zouhir DJERROU and Edouard GOMEZ-REYES

DOI : 10.3844/ojbsci.2017.166.177

OnLine Journal of Biological Sciences

Volume 17, Issue 3

Pages 166-177


Cancers development and complications are a major cause of death in dogs all over the world. The current study attempts to describe the prevalence and anatomo-pathologic traits of mammary gland tumors (MGTs) in bitches in northeast Algeria. From November 2013 to April 2016, a total of 215 bitches originating from four provinces (Constantine, Oum El Bouaghi, Annaba and Skikda) were enrolled. The overall prevalence of MGTs was 19.53%. It was higher in littoral provinces (27.22%) than in inland ones (15.33%). A high rate was documented in Caniche (43.75%) as compared to Cross-breed (16.17%) and German shepherd (14.78%) bitches. The mean age of positively diagnosed animals was 9±0.3 years and the mean size of tumors was 5.4±04 cm. Histopathological classification revealed that 40.47% tumors were benign (mainly benign mixed tumors and benign complex tumors), 30.95% were malignant (especially epidermoid carcinoma, mammary sarcoma and malignant complex tumors) and 28.57% were identified as dysplasia (Mostly Osteo-mammary, benign hyperplasia and fibrocystic mastopathy). Finally, more epidemiological investigations are needed to determine the risk factors that may be implicated in the initiation and evolution of these health problems.


© 2017 Zahra GABLI, Leila BEDDAR, Zouhir DJERROU and Edouard GOMEZ-REYES. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.