Vet Med - Czech, 2022, 67(2):99-104 | DOI: 10.17221/55/2021-VETMED

Benign ovarian teratoma in the dog with predominantly nervous tissue: A case reportCase Report

P Makovicky¹, AV Makarevich², P Makovicky³, A Seidavi⁴, L Vannucci⁵, K Rimarova⁶

¹ Infectious Diseases and Preventive Medicine, Veterinary Research Institute, v. v. i., Brno, Czech Republic

² National Agricultural and Food Centre, Research Institute for Animal Production, Lužianky, Slovak Republic

³ Department of Biology, Faculty of Education, J. Selye University, Komárno, Slovak Republic

⁴ Department of Animal Science, Rasht Branch, Islamic Azad University, Rasht, Iran

⁵ Laboratory of Immunotherapy, Institute of Microbiology of the Czech Academy of Sciences, v. v. i., Prague, Czech Republic

⁶ Department of Public Health and Hygiene, Faculty of Medicine, P. J. Šafárik University, Košice, Slovak republic

Ovarian teratomas are rare neoplasms in female dogs, and they are characterised by the proliferation of tissues of embryonic origin. Most teratomas are benign, but a histological diagnosis is important for clinicians. The objective of this article is to describe a benign ovarian teratoma in a dog, which was found on the street and was appearing like pregnant. A veterinary inspection by palpation documented an enlarged abdomen with a mass of tough matter located on the right side in the abdominal-pelvic part. An ultrasound examination presumed neoplastic mass in region of ovary. A bilateral ovariohysterectomy was performed and the subsequent histological evaluation revealed a benign ovarian teratoma with a histochemically and immunohistochemically verified nervous tissue. After one year, no distant metastases were found and the dog was recognised as being clinically healthy without problems. On the basis of the ultrasonography diagnostics and histopathological analyses, we have demonstrated the occurrence of a benign ovarian teratoma in a dog.

Keywords: germ cell neoplasm; ovary; veterinary pathology

Received: April 14, 2021; Accepted: September 22, 2021; Published: February 15, 2022  Show citation