A 9
year-old, male, Rottweiler was presented with the complaint of
abnormal growth inright thoracal mammary lobe. Clinically, thoracic papilla mamma was about 5×3 cm in
size, and ostium papillare was ulcerative and infected. Radiography of the thorax
revealed findings indicative of metastasis. Ultrasonographical
examination revealed that mammary tissue had heterogeneous appearance and was surrounded
by hyperechoic areas. The mastectomy of the mammary lobe was performed under
general anesthesia. Histopathological examination revealed solid and papillary proliferations
of glandular epithelia and a high mitotic activity. A diagnosis of anaplastic mammary
carcinoma was made based on these findings. Anaplastic mammary gland carcinomas
are rarely encountered in male dogs and one incident is reported in this case
presentation.
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